Reproduction in organism
•Download as PPTX, PDF•
0 likes•82 views
This document defines asexual reproduction and describes some types. It discusses: 1) Asexual reproduction involves only one parent and does not involve meiosis, gamete formation, fertilization, or genetic transfer. It is a means of rapid multiplication. 2) Examples of asexual reproduction include binary fission in bacteria, protozoa, and planaria. Binary fission in bacteria involves DNA replication and cell division. 3) Multiple fission occurs in plasmodium and amoeba, allowing them to produce many daughter cells at once. Sporulation helps organisms survive unfavorable conditions and disperse to new locations.
Report
Share
Report
Share
Recommended
Reproduction in organisms
The life spans of wild animals are typically observed to be shorter than in zoos, due to factors like infant mortality, disease, predators, weather, accidents, and competition for resources in natural conditions. Reproduction serves to replace individuals that die from aging or other causes, introduce variation for adaptability, and ensure the continuation of species. The basic features of reproduction include DNA replication, cell growth and division, and the formation and development of reproductive units that develop into new offspring. Organisms can reproduce either once in their lifetime (semelparous) or in successive cycles (iteroparous). Asexual reproduction occurs via budding, fission, fragmentation or regeneration, while sexual reproduction involves syngamy or the fusion of
Ch 1 reproduction in organism
This ppt includes Chapter 1 Reproduction in organisms (CBSE) class XII. It will be helpful for a quick reference.
*** there are a few mistakes please make the following changes
slide 27 , Earthworm is Bisexual( hermaphrodite).
slide 28 , Pistillate - flowers with pistil.
slide 29 and slide 30 - ignore that .
reproduction in organisms in cells division
defined as a biological process in
which an organism gives rise to
young ones (offspring) similar to
itself.
Asexual reproduction:
Offsprings produced by single
parents.
Without involvement of gamete
formation
Offsprings are genetically
identical to their parentsCell division as a method of asexual
reproduction as in Protista and monera.
Binary fission e.g. Amoeba, Paramecium.
Budding: e.g. yeast.
Asexual reproductive structures:
Zoospores: aquatic fungi, Chlamydomonas.
Conidia: Penicillium.
Bud: Hydra
Gemmules: sponges.
Vegetative propagation units in plant:
(Vegetative propagules)
Runner, rhizome, sucker, tuber, offset, bulb.
Reproduction in organisms
Reproduction is essential for species survival as it allows the transmission of genetic material between generations. The life span of organisms can vary greatly from just a few minutes to thousands of years. Reproduction can occur asexually through processes like budding, fragmentation, and fission, or sexually which involves the fusion of male and female gametes. In sexual reproduction, gametes are produced through meiosis and then fuse during fertilization, either internally or externally, forming a diploid zygote. The zygote then undergoes embryogenesis developing into a new organism.
Reproduction In Organisms-CBSE Class XII Biology
This document summarizes reproduction in organisms for class 12 biology. It discusses the different types of reproduction including asexual and sexual reproduction. Asexual reproduction occurs through fission, budding, spore formation, or vegetative propagation. Sexual reproduction involves gametogenesis, gamete transfer through processes like pollination, syngamy and fertilization to form a zygote, and post-fertilization development of the zygote into an embryo. Sexual reproduction can be external or internal, and in animals it can result in oviparous offspring that are laid as eggs or viviparous offspring that develop internally.
Reproduction in organism | Class XII | Biology
The PPT Contains data of Chapter 1 class XII Biology as per NCERT.
For videos and more content of same type visit my youtube channel NEET Is Mine :- https://www.youtube.com/channel/UCOB-92DeZbRD7xPUoo9VP1w/featured
For direct content join telegram channel https://t.me/NeetIsMine.
Thanks
reproduction in organism class xii
This document discusses reproduction in organisms. It describes the two main types of reproduction as asexual and sexual reproduction. Asexual reproduction involves a single parent and produces offspring identical to the parent, while sexual reproduction involves male and female gametes from separate individuals producing offspring with genetic variation. The document outlines the key stages and processes of sexual reproduction including gamete formation, gamete transfer, fertilization, and post-fertilization development. It also discusses different reproductive strategies in plants and animals.
reproduction in organism
The document discusses different modes of reproduction in organisms, including asexual and sexual reproduction. Asexual reproduction involves reproduction by a single parent and produces offspring that are genetically identical clones. Common forms of asexual reproduction include binary fission, budding, fragmentation, sporulation, and vegetative reproduction. Sexual reproduction involves two parents and produces offspring with genetic variation. The life cycle of sexually reproducing organisms includes juvenile, reproductive, and senescent phases. Key events in sexual reproduction are pre-fertilization, fertilization, and post-fertilization.
Recommended
Reproduction in organisms
The life spans of wild animals are typically observed to be shorter than in zoos, due to factors like infant mortality, disease, predators, weather, accidents, and competition for resources in natural conditions. Reproduction serves to replace individuals that die from aging or other causes, introduce variation for adaptability, and ensure the continuation of species. The basic features of reproduction include DNA replication, cell growth and division, and the formation and development of reproductive units that develop into new offspring. Organisms can reproduce either once in their lifetime (semelparous) or in successive cycles (iteroparous). Asexual reproduction occurs via budding, fission, fragmentation or regeneration, while sexual reproduction involves syngamy or the fusion of
Ch 1 reproduction in organism
This ppt includes Chapter 1 Reproduction in organisms (CBSE) class XII. It will be helpful for a quick reference.
*** there are a few mistakes please make the following changes
slide 27 , Earthworm is Bisexual( hermaphrodite).
slide 28 , Pistillate - flowers with pistil.
slide 29 and slide 30 - ignore that .
reproduction in organisms in cells division
defined as a biological process in
which an organism gives rise to
young ones (offspring) similar to
itself.
Asexual reproduction:
Offsprings produced by single
parents.
Without involvement of gamete
formation
Offsprings are genetically
identical to their parentsCell division as a method of asexual
reproduction as in Protista and monera.
Binary fission e.g. Amoeba, Paramecium.
Budding: e.g. yeast.
Asexual reproductive structures:
Zoospores: aquatic fungi, Chlamydomonas.
Conidia: Penicillium.
Bud: Hydra
Gemmules: sponges.
Vegetative propagation units in plant:
(Vegetative propagules)
Runner, rhizome, sucker, tuber, offset, bulb.
Reproduction in organisms
Reproduction is essential for species survival as it allows the transmission of genetic material between generations. The life span of organisms can vary greatly from just a few minutes to thousands of years. Reproduction can occur asexually through processes like budding, fragmentation, and fission, or sexually which involves the fusion of male and female gametes. In sexual reproduction, gametes are produced through meiosis and then fuse during fertilization, either internally or externally, forming a diploid zygote. The zygote then undergoes embryogenesis developing into a new organism.
Reproduction In Organisms-CBSE Class XII Biology
This document summarizes reproduction in organisms for class 12 biology. It discusses the different types of reproduction including asexual and sexual reproduction. Asexual reproduction occurs through fission, budding, spore formation, or vegetative propagation. Sexual reproduction involves gametogenesis, gamete transfer through processes like pollination, syngamy and fertilization to form a zygote, and post-fertilization development of the zygote into an embryo. Sexual reproduction can be external or internal, and in animals it can result in oviparous offspring that are laid as eggs or viviparous offspring that develop internally.
Reproduction in organism | Class XII | Biology
The PPT Contains data of Chapter 1 class XII Biology as per NCERT.
For videos and more content of same type visit my youtube channel NEET Is Mine :- https://www.youtube.com/channel/UCOB-92DeZbRD7xPUoo9VP1w/featured
For direct content join telegram channel https://t.me/NeetIsMine.
Thanks
reproduction in organism class xii
This document discusses reproduction in organisms. It describes the two main types of reproduction as asexual and sexual reproduction. Asexual reproduction involves a single parent and produces offspring identical to the parent, while sexual reproduction involves male and female gametes from separate individuals producing offspring with genetic variation. The document outlines the key stages and processes of sexual reproduction including gamete formation, gamete transfer, fertilization, and post-fertilization development. It also discusses different reproductive strategies in plants and animals.
reproduction in organism
The document discusses different modes of reproduction in organisms, including asexual and sexual reproduction. Asexual reproduction involves reproduction by a single parent and produces offspring that are genetically identical clones. Common forms of asexual reproduction include binary fission, budding, fragmentation, sporulation, and vegetative reproduction. Sexual reproduction involves two parents and produces offspring with genetic variation. The life cycle of sexually reproducing organisms includes juvenile, reproductive, and senescent phases. Key events in sexual reproduction are pre-fertilization, fertilization, and post-fertilization.
reproduction in organisms for class 12 in biology
1. The document discusses various topics related to reproduction in organisms including asexual reproduction, sexual reproduction, gametogenesis, gamete transfer, syngamy and fertilization, and post-fertilization events.
2. It describes different types of asexual reproduction like binary fission, budding, and vegetative propagation. It also differentiates between sexual and asexual reproduction.
3. The stages of sexual reproduction are explained which include pre-fertilization changes like gametogenesis and gamete transfer, syngamy and fertilization, and post-fertilization development of the zygote and embryo.
Reproduction in organism 2014 mohanbio
This document discusses reproduction in organisms. It begins by defining the life span of organisms and noting that reproduction enables continuity of species across generations. The main types of reproduction are asexual, which produces genetically identical offspring via budding or binary fission, and sexual, which involves the fusion of male and female gametes. In plants, asexual reproduction includes vegetative processes like stolons and rhizomes, while sexual reproduction uses pollination and fertilization to produce seeds. The zygote develops into an embryo through embryogenesis. Reproduction can be external or internal, and offspring may be oviparous, viviparous, or ovoviviparous.
Biology chapter wise important questions
Chapter wise important questions in Biology for Karnataka 2 year PU Science students. This is taken from the PU board website and compiled together.
Reproduction in organism NCERT Question and Answer by mohanbio2013
1. Reproduction, both sexual and asexual, is essential for continuity of life on Earth and evolution.
2. Sexual reproduction introduces genetic variation which allows offspring to better adapt to the environment, whereas asexual reproduction produces clones of the parent.
3. Vegetative reproduction, like runners and rhizomes, is a form of asexual reproduction where new plants are produced from fragments of the parent plant.
Reproduction in organisms
The document provides information about the stages in the life cycle of sexually reproducing organisms. It discusses the juvenile, reproductive, and post-reproductive phases. It describes gamete formation through meiosis in diploid organisms. Fertilization and zygote formation are explained, along with the internal and external fertilization processes. The document outlines the embryogenesis process in both animals and plants, and the differences between oviparous and viviparous reproduction. It also summarizes the different life cycles of organisms and the post-fertilization development of the embryo.
CLASS 12||Chapter 1|| Reproduction in Organisms.
I have covered each topic of NCERT in explaining first chapter. In this chapter very basic information on reproduction is discussed.This is helpful for Board as well as NEET students.
Feel free for any query or suggestion.
Mail us on: biologypratham@gmail.com
Website : www.prathambiology.in
3. how do organism reproduce
Here are the key points about the female reproductive system:
- Ovaries are the site of ovum (egg) production
- Ovaries are also the site of estrogen and progesterone hormone production
- Fallopian tubes connect the ovaries to the uterus and allow the ovum to move towards the uterus
- The uterus provides a nourishing environment for embryo development if fertilization occurs
- The cervix connects the uterus to the vagina
- The vagina is the site of intercourse and menstrual flow exits through it
- The ovum consists of 23 haploid chromosomes (22 autosomes + X chromosome)
- Estrogen brings about changes seen in girls during puberty like breast development
-
Reproduction in organisms
The various methods of reproduction employed by different organisms are discussed here which include Asexual & Sexual reproduction along with Vegetative methods employed by Plants for their propagation
CBSE Previous Years Questions and Answers, Chapter - 8, How do Organisms Repr...
The document contains 26 multiple choice questions about human reproduction. It begins with definitions of key terms like fertilization and functions of parts of the male and female reproductive systems. Some questions differentiate between sexual and asexual reproduction, or compare reproductive processes between species. The last few questions focus specifically on the human reproductive cycle and placenta, describing its structure and role in exchanging gases and nutrients between mother and fetus.
HOW DO ORGANISMS REPRODUCE
Asexual reproduction in amoeba occurs through binary fission. The amoeba cell divides through mitosis to form two identical daughter cells. Each daughter cell is an exact clone of the parent cell. Binary fission allows for rapid multiplication of amoeba in favorable environmental conditions. The contractile vacuole acts to regulate the amoeba's water content through osmosis, as the cell takes in more water than its surroundings. It repeatedly swells and bursts to expel excess water from the cell.
Reproduction in Organism - NEET biology
This document discusses various types and modes of reproduction in organisms. It describes asexual reproduction methods like fission, budding, fragmentation seen in organisms like amoeba, hydra, spirogyra. Sexual reproduction involves gamete fusion in plants and algae. In flowering plants, methods of vegetative propagation through cuttings, grafting, layering are explained. The document also covers external and internal fertilization, zygote formation, embryonic development in animals and unusual reproductive phenomena seen in some plants.
Asexual reproduction, reproduction in organisms, neet biology
Life span refers to the period from birth to natural death of an organism. Reproduction allows organisms to produce offspring similar to themselves. There are two types of reproduction: asexual, which involves a single parent, and sexual, which involves two parents of opposite sex fusing gametes. Asexual reproduction results in offspring that are identical clones of the parent and allows for rapid propagation of organisms.
How do organisms reproduce.ppt
This document provides information about reproduction in organisms and humans. It discusses that reproduction allows organisms to produce new individuals of the same species for survival and evolution. During reproduction, DNA is copied but not identically, allowing for variation between offspring. There are two main types of reproduction: asexual, involving one parent, and sexual, involving two parents. Sexual reproduction in flowering plants involves pollen transferring between stamen and pistil, leading to fertilization when male and female gametes fuse. In humans, males and females have reproductive systems that allow for internal fertilization, embryo development over nine months, and birth of the child.
How do organisms reproduce.ppt
This document provides information about reproduction in organisms. It discusses that reproduction allows organisms to produce new individuals of the same species and is necessary for survival and population growth. During reproduction, DNA is copied but not identically, allowing for variation between offspring. This variation is important for adaptation to environmental changes and evolution of new species. The document also describes different types of reproduction like asexual reproduction, sexual reproduction, and modes of asexual reproduction like fission, budding, regeneration etc. It further discusses sexual reproduction in flowering plants and human beings.
Reproduction Types of reproduction 10th class chapter
This document discusses various types of asexual reproduction in organisms. It describes mechanisms such as binary fission, budding, vegetative propagation, spore formation, fragmentation, parthenogenesis, and apomixis. It notes that asexual reproduction is common in single-celled organisms and plants but relatively rare in animals. While it provides short term benefits, sexual reproduction allows for more genetic diversity and adaptation to changing environments. The document also discusses alternation between sexual and asexual reproduction in some species and inheritance of asexual reproduction traits.
How do organisms reproduce.ppt
1. The document discusses reproduction in organisms including humans. It describes asexual reproduction methods like binary fission, budding and regeneration. Sexual reproduction requires two parents and is described for flowering plants and humans.
2. In sexual reproduction in flowering plants, pollen is transferred from the anther to the stigma via pollination. Fertilization occurs when the male gamete fuses with the female gamete.
3. Human reproduction involves male and female reproductive systems. Fertilization occurs when a sperm fuses with an egg. The zygote implants and develops into an embryo over 9 months before birth.
classx how do organism reproduce
it is useful for classroom teaching , remedial classes. it consist of important questions and answers according to the board point of view, students it is very helpful for your examination
How Do Organisms Reproduce?
1. Reproduction is the process by which living organisms produce new individuals of the same species through asexual or sexual reproduction. It is necessary for survival and increasing population size.
2. Asexual reproduction involves a single parent and methods include fission, budding, regeneration, fragmentation, and spore formation. Sexual reproduction involves two parents fusing male and female gametes.
3. In humans, sexual reproduction involves the male and female reproductive systems. Fertilization occurs when sperm fuse with eggs in the fallopian tubes, and the embryo implants in the uterus for gestation.
Reproduction in organisms
Sexual reproduction involves the union of genetic material from two parents - a male gamete and a female gamete - to produce a genetically distinct offspring. There are many different modes of asexual reproduction in organisms, including binary fission in unicellular organisms, budding, fragmentation, spore formation, and vegetative reproduction through various plant structures like roots, stems, leaves, runners, and offsets. Asexual reproduction results in offspring that are genetically identical to the parent, while sexual reproduction produces offspring with a new combination of genes from both parents.
Heredity and evolution class 10th cbse
1. The document provides information about heredity, variation, Mendel's experiments with pea plants, evolution, and human evolution.
2. Mendel conducted experiments with pea plants involving monohybrid and dihybrid crosses to study patterns of inheritance. His experiments showed dominant and recessive traits are inherited in predictable ratios.
3. Evolution occurs through natural selection acting on genetic variations over many generations, leading to the formation of new species. Evidence for evolution comes from homologous and analogous structures as well as fossils.
sources of genetic variation bot.pptx
Genetic variation arises from mutation, including point mutations and chromosomal mutations. Point mutations involve changes to single nucleotides, and can be transitions, transversions, or frameshift mutations. Chromosomal mutations involve changes to chromosomes, such as deletions, duplications, inversions, or translocations. Polyploidy is another source of genetic variation, where organisms have more than two complete sets of chromosomes. Autopolyploidy occurs when extra chromosome sets are derived from a single species, such as through errors in mitosis or meiosis, or genome duplication through chemicals like colchicine. Autopolyploids can show increased size and variable fertility.
Reproduction of plants and simple animals
This is a concept that tackles about the different methods of reproduction, asexual and sexual.
This features how organisms reproduce to offspring other than man and higher animals.
More Related Content
What's hot
reproduction in organisms for class 12 in biology
1. The document discusses various topics related to reproduction in organisms including asexual reproduction, sexual reproduction, gametogenesis, gamete transfer, syngamy and fertilization, and post-fertilization events.
2. It describes different types of asexual reproduction like binary fission, budding, and vegetative propagation. It also differentiates between sexual and asexual reproduction.
3. The stages of sexual reproduction are explained which include pre-fertilization changes like gametogenesis and gamete transfer, syngamy and fertilization, and post-fertilization development of the zygote and embryo.
Reproduction in organism 2014 mohanbio
This document discusses reproduction in organisms. It begins by defining the life span of organisms and noting that reproduction enables continuity of species across generations. The main types of reproduction are asexual, which produces genetically identical offspring via budding or binary fission, and sexual, which involves the fusion of male and female gametes. In plants, asexual reproduction includes vegetative processes like stolons and rhizomes, while sexual reproduction uses pollination and fertilization to produce seeds. The zygote develops into an embryo through embryogenesis. Reproduction can be external or internal, and offspring may be oviparous, viviparous, or ovoviviparous.
Biology chapter wise important questions
Chapter wise important questions in Biology for Karnataka 2 year PU Science students. This is taken from the PU board website and compiled together.
Reproduction in organism NCERT Question and Answer by mohanbio2013
1. Reproduction, both sexual and asexual, is essential for continuity of life on Earth and evolution.
2. Sexual reproduction introduces genetic variation which allows offspring to better adapt to the environment, whereas asexual reproduction produces clones of the parent.
3. Vegetative reproduction, like runners and rhizomes, is a form of asexual reproduction where new plants are produced from fragments of the parent plant.
Reproduction in organisms
The document provides information about the stages in the life cycle of sexually reproducing organisms. It discusses the juvenile, reproductive, and post-reproductive phases. It describes gamete formation through meiosis in diploid organisms. Fertilization and zygote formation are explained, along with the internal and external fertilization processes. The document outlines the embryogenesis process in both animals and plants, and the differences between oviparous and viviparous reproduction. It also summarizes the different life cycles of organisms and the post-fertilization development of the embryo.
CLASS 12||Chapter 1|| Reproduction in Organisms.
I have covered each topic of NCERT in explaining first chapter. In this chapter very basic information on reproduction is discussed.This is helpful for Board as well as NEET students.
Feel free for any query or suggestion.
Mail us on: biologypratham@gmail.com
Website : www.prathambiology.in
3. how do organism reproduce
Here are the key points about the female reproductive system:
- Ovaries are the site of ovum (egg) production
- Ovaries are also the site of estrogen and progesterone hormone production
- Fallopian tubes connect the ovaries to the uterus and allow the ovum to move towards the uterus
- The uterus provides a nourishing environment for embryo development if fertilization occurs
- The cervix connects the uterus to the vagina
- The vagina is the site of intercourse and menstrual flow exits through it
- The ovum consists of 23 haploid chromosomes (22 autosomes + X chromosome)
- Estrogen brings about changes seen in girls during puberty like breast development
-
Reproduction in organisms
The various methods of reproduction employed by different organisms are discussed here which include Asexual & Sexual reproduction along with Vegetative methods employed by Plants for their propagation
CBSE Previous Years Questions and Answers, Chapter - 8, How do Organisms Repr...
The document contains 26 multiple choice questions about human reproduction. It begins with definitions of key terms like fertilization and functions of parts of the male and female reproductive systems. Some questions differentiate between sexual and asexual reproduction, or compare reproductive processes between species. The last few questions focus specifically on the human reproductive cycle and placenta, describing its structure and role in exchanging gases and nutrients between mother and fetus.
HOW DO ORGANISMS REPRODUCE
Asexual reproduction in amoeba occurs through binary fission. The amoeba cell divides through mitosis to form two identical daughter cells. Each daughter cell is an exact clone of the parent cell. Binary fission allows for rapid multiplication of amoeba in favorable environmental conditions. The contractile vacuole acts to regulate the amoeba's water content through osmosis, as the cell takes in more water than its surroundings. It repeatedly swells and bursts to expel excess water from the cell.
Reproduction in Organism - NEET biology
This document discusses various types and modes of reproduction in organisms. It describes asexual reproduction methods like fission, budding, fragmentation seen in organisms like amoeba, hydra, spirogyra. Sexual reproduction involves gamete fusion in plants and algae. In flowering plants, methods of vegetative propagation through cuttings, grafting, layering are explained. The document also covers external and internal fertilization, zygote formation, embryonic development in animals and unusual reproductive phenomena seen in some plants.
Asexual reproduction, reproduction in organisms, neet biology
Life span refers to the period from birth to natural death of an organism. Reproduction allows organisms to produce offspring similar to themselves. There are two types of reproduction: asexual, which involves a single parent, and sexual, which involves two parents of opposite sex fusing gametes. Asexual reproduction results in offspring that are identical clones of the parent and allows for rapid propagation of organisms.
How do organisms reproduce.ppt
This document provides information about reproduction in organisms and humans. It discusses that reproduction allows organisms to produce new individuals of the same species for survival and evolution. During reproduction, DNA is copied but not identically, allowing for variation between offspring. There are two main types of reproduction: asexual, involving one parent, and sexual, involving two parents. Sexual reproduction in flowering plants involves pollen transferring between stamen and pistil, leading to fertilization when male and female gametes fuse. In humans, males and females have reproductive systems that allow for internal fertilization, embryo development over nine months, and birth of the child.
How do organisms reproduce.ppt
This document provides information about reproduction in organisms. It discusses that reproduction allows organisms to produce new individuals of the same species and is necessary for survival and population growth. During reproduction, DNA is copied but not identically, allowing for variation between offspring. This variation is important for adaptation to environmental changes and evolution of new species. The document also describes different types of reproduction like asexual reproduction, sexual reproduction, and modes of asexual reproduction like fission, budding, regeneration etc. It further discusses sexual reproduction in flowering plants and human beings.
Reproduction Types of reproduction 10th class chapter
This document discusses various types of asexual reproduction in organisms. It describes mechanisms such as binary fission, budding, vegetative propagation, spore formation, fragmentation, parthenogenesis, and apomixis. It notes that asexual reproduction is common in single-celled organisms and plants but relatively rare in animals. While it provides short term benefits, sexual reproduction allows for more genetic diversity and adaptation to changing environments. The document also discusses alternation between sexual and asexual reproduction in some species and inheritance of asexual reproduction traits.
How do organisms reproduce.ppt
1. The document discusses reproduction in organisms including humans. It describes asexual reproduction methods like binary fission, budding and regeneration. Sexual reproduction requires two parents and is described for flowering plants and humans.
2. In sexual reproduction in flowering plants, pollen is transferred from the anther to the stigma via pollination. Fertilization occurs when the male gamete fuses with the female gamete.
3. Human reproduction involves male and female reproductive systems. Fertilization occurs when a sperm fuses with an egg. The zygote implants and develops into an embryo over 9 months before birth.
classx how do organism reproduce
it is useful for classroom teaching , remedial classes. it consist of important questions and answers according to the board point of view, students it is very helpful for your examination
How Do Organisms Reproduce?
1. Reproduction is the process by which living organisms produce new individuals of the same species through asexual or sexual reproduction. It is necessary for survival and increasing population size.
2. Asexual reproduction involves a single parent and methods include fission, budding, regeneration, fragmentation, and spore formation. Sexual reproduction involves two parents fusing male and female gametes.
3. In humans, sexual reproduction involves the male and female reproductive systems. Fertilization occurs when sperm fuse with eggs in the fallopian tubes, and the embryo implants in the uterus for gestation.
Reproduction in organisms
Sexual reproduction involves the union of genetic material from two parents - a male gamete and a female gamete - to produce a genetically distinct offspring. There are many different modes of asexual reproduction in organisms, including binary fission in unicellular organisms, budding, fragmentation, spore formation, and vegetative reproduction through various plant structures like roots, stems, leaves, runners, and offsets. Asexual reproduction results in offspring that are genetically identical to the parent, while sexual reproduction produces offspring with a new combination of genes from both parents.
Heredity and evolution class 10th cbse
1. The document provides information about heredity, variation, Mendel's experiments with pea plants, evolution, and human evolution.
2. Mendel conducted experiments with pea plants involving monohybrid and dihybrid crosses to study patterns of inheritance. His experiments showed dominant and recessive traits are inherited in predictable ratios.
3. Evolution occurs through natural selection acting on genetic variations over many generations, leading to the formation of new species. Evidence for evolution comes from homologous and analogous structures as well as fossils.
What's hot (20)
Reproduction in organism NCERT Question and Answer by mohanbio2013
Reproduction in organism NCERT Question and Answer by mohanbio2013
CBSE Previous Years Questions and Answers, Chapter - 8, How do Organisms Repr...
CBSE Previous Years Questions and Answers, Chapter - 8, How do Organisms Repr...
Asexual reproduction, reproduction in organisms, neet biology
Asexual reproduction, reproduction in organisms, neet biology
Reproduction Types of reproduction 10th class chapter
Reproduction Types of reproduction 10th class chapter
Similar to Reproduction in organism
sources of genetic variation bot.pptx
Genetic variation arises from mutation, including point mutations and chromosomal mutations. Point mutations involve changes to single nucleotides, and can be transitions, transversions, or frameshift mutations. Chromosomal mutations involve changes to chromosomes, such as deletions, duplications, inversions, or translocations. Polyploidy is another source of genetic variation, where organisms have more than two complete sets of chromosomes. Autopolyploidy occurs when extra chromosome sets are derived from a single species, such as through errors in mitosis or meiosis, or genome duplication through chemicals like colchicine. Autopolyploids can show increased size and variable fertility.
Reproduction of plants and simple animals
This is a concept that tackles about the different methods of reproduction, asexual and sexual.
This features how organisms reproduce to offspring other than man and higher animals.
Heredity and Evolution
This document discusses genetics and evolution. It provides background on heredity, variation, Mendel's experiments with pea plants, and his laws of inheritance. It describes how traits are passed from parents to offspring through genes, alleles, dominance, and segregation. It discusses evidence for evolution, including homologous and vestigial structures, as well as theories like natural selection and genetic drift. The document also covers modern concepts like DNA, chromosomes, mutation, and molecular evidence supporting common descent.
Bacterial growth
This document discusses bacterial growth and summarizes key points about the growth cycle of bacteria. It notes that bacterial growth involves an increase in all chemical constituents and occurs through cell multiplication via binary fission. The growth cycle consists of four phases - lag phase, exponential/log phase, stationary phase, and death phase. The log phase is when bacteria multiply at their maximum rate and the time for one division is called the generation time. Population growth increases geometrically with each generation. Quantitative measurement of growth can occur through direct cell counting, measuring cell mass, or assessing cell activity.
MICROBIAL GROWTH, REPRODUCTION AND CONTROL
Microbial growth is defined as an increase in the number of cells. A microbial cell has a lifespan and a species is maintained only as a result of continued growth of its population. Growth is the ultimate process in the life of a cell – one cell becoming two and subsequently leading to an increase in the number in a population of microorganisms.
In microbiology, growth is synonymous to reproduction. This unit examines the term growth, binary fission, the mode of cell division in prokaryotic cells, stages in the growth curve and the mathematics of growth.
Definition of Growth
Growth is defined as an increase in the number of cells in a population of microorganisms. It is an increase in cellular constituents leading to arise in cell number when microorganisms reproduce by processes like binary fission or budding.
The Prokaryotic Cell Cycle
A prokaryotic cell cycle is the complete sequence of events from the formation of a new cell through the next division. Most prokaryotes reproduce by binary fission, budding or fragmentation.
Binary Fission
Binary fission is a form of asexual reproduction process. In which a single cell divides into two cells after developing a transverse septum(cross wall).Binary fission is a simple type of cell division and the processes involved are: the cell elongates, replicates its
chromosomes and separates the newly formed DNA molecules so that there is a chromosome in each half of the cell. A septum is formed at mid cell; divide the parent cell into two progeny cells and each having its own chromosome and a copy or complement of other cellular constituents.
REPRODUCTION
Asexual reproduction involves mitosis and produces offspring that are genetically identical to the parent. It has advantages like rapid reproduction but lacks genetic variation. Sexual reproduction involves meiosis and fusion of gametes from two parents. It produces offspring with genetic variation through processes like independent assortment and crossing over during meiosis I. This variation allows populations to adapt to changing environments. The document then describes the stages of meiosis and compares it to mitosis. It also outlines the major stages of sexual reproduction like gametogenesis, fertilization, development, and birth.
Reproduction- class x biology NCRT
1. The document discusses various modes of reproduction in living organisms including asexual reproduction methods like binary fission, budding, spore formation, regeneration, fragmentation, and vegetative propagation.
2. It also describes sexual reproduction which involves the fusion of male and female gametes to form a zygote that develops into a new organism.
3. DNA replication during reproduction is highlighted as essential for transmitting characteristics from parents to offspring, with variations introduced through imperfect replication allowing for evolution of species over time.
Std 12 ch 1 reproduction in organism
STD 12 BIOLOGY
HELPFUL FOR NEET/ GSET/NET EXAMINATION PREPARATION
TYPES OF REPRODUCTION IN PLANTS AND ANIMALS
Life processes in living organism part 2
It is for std 10 science and technology part 2 chapter 3 and covers sexual and asexual reproduction in plants and animals
Bacterial Reproduction.pdf
This PowerPoint wants to explore the bird's eye view of the reproduction of bacteria in general and the genetic recombination of bacteria in particular.
Embryogenesis deepika
1) The document discusses various types of embryogenesis including the Onagrad, Asterad, Solanad, Chenopodiad, and Caryophyllad types.
2) It provides examples of plant families that exhibit each type and describes how the apical and basal cells divide and contribute to embryo formation.
3) General patterns of embryo development are described for dicots using Ceratocephalus falcatus as an example, and for monocots using Najas lacerata.
homeostasis and soma-germline interaction
This document discusses homeostasis and the interaction between soma and germline cells. It covers Weismann's theory of germplasm continuity between generations and mechanisms for determining germline and soma cell lines in various organisms. In mammals, primordial germ cells form early in development and migrate to the genital ridge where they interact with somatic cells. In the testis, Sertoli cells secrete proteins and communicate with germ cells through contact and gap junctions to influence their development.
Reproduction in bacteria
Bacteria are the simplest, the smallest, and the most successful microorganisms.
They were first discovered by Anton Leeuwenhoek (1676).
In the five kingdom classification, they are placed in Kingdom Monera. Reproduction: Vegetative Reproduction, Sexual Reproduction & Asexual Reproduction.
Bacteriology
This Power point presentation intends to explore the reproduction in bacteria with special reference to genetic recombination.
Chapter 7 notes
Meiosis reduces the number of chromosomes in cells from diploid to haploid, forming four haploid gametes from one diploid cell. This occurs through the processes of independent assortment, crossing over, and random fertilization, which contribute to genetic variation and allow for evolution. Meiosis produces either sperm cells in males through spermatogenesis or egg cells in females through oogenesis, where the cytoplasm unequally divides. Sexual reproduction then involves the union of haploid gametes from two parents to form a diploid zygote, resulting in offspring that are genetically different from the parents.
Ch 01 - Reproduction in Organism || Class 12 ||
The document discusses reproduction in organisms. It defines asexual and sexual reproduction. Asexual reproduction involves mitosis and produces offspring that are genetically identical, while sexual reproduction involves meiosis and the fusion of male and female gametes, producing offspring that show genetic variation. It describes several modes of asexual reproduction including binary fission, budding, spore formation, and vegetative reproduction. It also provides details on the process of sexual reproduction including gametogenesis, gamete transfer, fertilization, and post-fertilization development of the zygote into an embryo.
SCIENCE 7 - Q2W5 Slides.pdf
Sexual and asexual reproduction are compared. Sexual reproduction involves two parents and produces offspring with genetic variation, while asexual reproduction involves one parent and produces genetically identical offspring. Both involve forming new individuals but sexual reproduction results from fertilization of an egg by sperm and involves the formation of gametes, while asexual reproduction does not. The key differences are summarized using a Venn diagram.
Development of drosophila
Introduction
About Drosophila
Genome of Drosophila
Life cycle
Differentiation
Development of Drosophila
* Embryonic development
* Dorsal -ventral and
* Anterior posterior development
* Body segmentation
* Homeotic gene
Conclusion
Reference
Bacterial replication
Bacteria reproduce asexually through binary fission or budding. In binary fission, a bacterium grows and its DNA replicates before the cell divides into two identical daughter cells. Bacteria can double in number as quickly as every 9.8 minutes under optimal conditions. Some bacteria reproduce through budding, where a small bud forms on the mother cell and eventually separates. Bacteria can also exchange genetic material through transformation, transduction, and conjugation, allowing for rapid adaptation.
cell lineage and fate
cell lineage , cell fate - diverse class of cell fate, cell fate in plant meristem, mammalian development cell fate, nutritional effects on epigenetics, epigenetics of plants,
control of cell fate.
Similar to Reproduction in organism (20)
Recently uploaded
Nucleic Acid-its structural and functional complexity.
This presentation explores a brief idea about the structural and functional attributes of nucleotides, the structure and function of genetic materials along with the impact of UV rays and pH upon them.
SAR of Medicinal Chemistry 1st by dk.pdf
In this presentation include the prototype drug SAR on thus or with their examples .
Syllabus of Second Year B. Pharmacy
2019 PATTERN.
The binding of cosmological structures by massless topological defects
Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
equations sourced by a topological defect, i.e. a singularity of a very specific form, the result is a localized gravitational
field capable of driving flat rotation (i.e. Keplerian circular orbits at a constant speed for all radii) of test masses on a thin
spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
mitigated, at least in part.
The debris of the ‘last major merger’ is dynamically young
The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the
‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor
collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago.
We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
Thornton ESPP slides UK WW Network 4_6_24.pdf
ESPP presentation to EU Waste Water Network, 4th June 2024 “EU policies driving nutrient removal and recycling
and the revised UWWTD (Urban Waste Water Treatment Directive)”
Cytokines and their role in immune regulation.pptx
This presentation covers the content and information on "Cytokines " and their role in immune regulation .
THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...
THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...Abdul Wali Khan University Mardan,kP,Pakistan
hematic appreciation test is a psychological assessment tool used to measure an individual's appreciation and understanding of specific themes or topics. This test helps to evaluate an individual's ability to connect different ideas and concepts within a given theme, as well as their overall comprehension and interpretation skills. The results of the test can provide valuable insights into an individual's cognitive abilities, creativity, and critical thinking skillsBREEDING METHODS FOR DISEASE RESISTANCE.pptx
Plant breeding for disease resistance is a strategy to reduce crop losses caused by disease. Plants have an innate immune system that allows them to recognize pathogens and provide resistance. However, breeding for long-lasting resistance often involves combining multiple resistance genes
Shallowest Oil Discovery of Turkiye.pptx
The Petroleum System of the Çukurova Field - the Shallowest Oil Discovery of Türkiye, Adana
Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...
The pygmy halfbeak Dermogenys colletei, is known for its viviparous nature, this presents an intriguing case of relatively low fecundity, raising questions about potential compensatory reproductive strategies employed by this species. Our study delves into the examination of fecundity and the Gonadosomatic Index (GSI) in the Pygmy Halfbeak, D. colletei (Meisner, 2001), an intriguing viviparous fish indigenous to Sarawak, Borneo. We hypothesize that the Pygmy halfbeak, D. colletei, may exhibit unique reproductive adaptations to offset its low fecundity, thus enhancing its survival and fitness. To address this, we conducted a comprehensive study utilizing 28 mature female specimens of D. colletei, carefully measuring fecundity and GSI to shed light on the reproductive adaptations of this species. Our findings reveal that D. colletei indeed exhibits low fecundity, with a mean of 16.76 ± 2.01, and a mean GSI of 12.83 ± 1.27, providing crucial insights into the reproductive mechanisms at play in this species. These results underscore the existence of unique reproductive strategies in D. colletei, enabling its adaptation and persistence in Borneo's diverse aquatic ecosystems, and call for further ecological research to elucidate these mechanisms. This study lends to a better understanding of viviparous fish in Borneo and contributes to the broader field of aquatic ecology, enhancing our knowledge of species adaptations to unique ecological challenges.
Equivariant neural networks and representation theory
Or: Beyond linear.
Abstract: Equivariant neural networks are neural networks that incorporate symmetries. The nonlinear activation functions in these networks result in interesting nonlinear equivariant maps between simple representations, and motivate the key player of this talk: piecewise linear representation theory.
Disclaimer: No one is perfect, so please mind that there might be mistakes and typos.
dtubbenhauer@gmail.com
Corrected slides: dtubbenhauer.com/talks.html
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...
Travis Hills of Minnesota developed a method to convert waste into high-value dry fertilizer, significantly enriching soil quality. By providing farmers with a valuable resource derived from waste, Travis Hills helps enhance farm profitability while promoting environmental stewardship. Travis Hills' sustainable practices lead to cost savings and increased revenue for farmers by improving resource efficiency and reducing waste.
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/3D Hybrid PIC simulation of the plasma expansion (ISSS-14)
3D Particle-In-Cell (PIC) algorithm,
Plasma expansion in the dipole magnetic field.
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...
Functional Magnetic Resonance Imaging (fMRI) provides means to characterize brain activations in response to behavior. However, cognitive neuroscience has been limited to group-level effects referring to the performance of specific tasks. To obtain the functional profile of elementary cognitive mechanisms, the combination of brain responses to many tasks is required. Yet, to date, both structural atlases and parcellation-based activations do not fully account for cognitive function and still present several limitations. Further, they do not adapt overall to individual characteristics. In this talk, I will give an account of deep-behavioral phenotyping strategies, namely data-driven methods in large task-fMRI datasets, to optimize functional brain-data collection and improve inference of effects-of-interest related to mental processes. Key to this approach is the employment of fast multi-functional paradigms rich on features that can be well parametrized and, consequently, facilitate the creation of psycho-physiological constructs to be modelled with imaging data. Particular emphasis will be given to music stimuli when studying high-order cognitive mechanisms, due to their ecological nature and quality to enable complex behavior compounded by discrete entities. I will also discuss how deep-behavioral phenotyping and individualized models applied to neuroimaging data can better account for the subject-specific organization of domain-general cognitive systems in the human brain. Finally, the accumulation of functional brain signatures brings the possibility to clarify relationships among tasks and create a univocal link between brain systems and mental functions through: (1) the development of ontologies proposing an organization of cognitive processes; and (2) brain-network taxonomies describing functional specialization. To this end, tools to improve commensurability in cognitive science are necessary, such as public repositories, ontology-based platforms and automated meta-analysis tools. I will thus discuss some brain-atlasing resources currently under development, and their applicability in cognitive as well as clinical neuroscience.
Nucleophilic Addition of carbonyl compounds.pptx
Nucleophilic addition is the most important reaction of carbonyls. Not just aldehydes and ketones, but also carboxylic acid derivatives in general.
Carbonyls undergo addition reactions with a large range of nucleophiles.
Comparing the relative basicity of the nucleophile and the product is extremely helpful in determining how reversible the addition reaction is. Reactions with Grignards and hydrides are irreversible. Reactions with weak bases like halides and carboxylates generally don’t happen.
Electronic effects (inductive effects, electron donation) have a large impact on reactivity.
Large groups adjacent to the carbonyl will slow the rate of reaction.
Neutral nucleophiles can also add to carbonyls, although their additions are generally slower and more reversible. Acid catalysis is sometimes employed to increase the rate of addition.
Bob Reedy - Nitrate in Texas Groundwater.pdf
Presented at June 6-7 Texas Alliance of Groundwater Districts Business Meeting
Recently uploaded (20)
Nucleic Acid-its structural and functional complexity.
Nucleic Acid-its structural and functional complexity.
The binding of cosmological structures by massless topological defects
The binding of cosmological structures by massless topological defects
The debris of the ‘last major merger’ is dynamically young
The debris of the ‘last major merger’ is dynamically young
Cytokines and their role in immune regulation.pptx
Cytokines and their role in immune regulation.pptx
THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...
THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...
Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...
Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...
Equivariant neural networks and representation theory
Equivariant neural networks and representation theory
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...
3D Hybrid PIC simulation of the plasma expansion (ISSS-14)
3D Hybrid PIC simulation of the plasma expansion (ISSS-14)
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...
Reproduction in organism
- 8. Definition
- 9. The duration between birth & death which may be from few minutes to thousands of years -Plants show larger growth than animal due to meristematic tissue Ls Definition Phases
- 10. - life span have four phases --- -1- juvenility – -age from birth upto reproduction -2- maturity – -when do reproduction -3-ageing – -when start deteriration -4- senescence --- -when deterioration become irreversible -5- death --- -when senescence leads to death
- 13. - it is important processes by which every living organism makes a copy of itself
- 15. -means of -multiplication & - perpetuation of species
- 17. -two type -1- asexual reproduction - 2- sexual reproduction
- 23. Ar Definition
- 24. Asexual reproduction or agamogenesis or agamogeny or somatogenic reproduction----
- 26. Asexual reproduction or agamogenesis or agamogeny or somatogenic reproduction----it is a kind of reproduction involve only one parent in which meiosis , gamete production , fertilization , genetic material transfer & parthenogenesis does not occur – rapid increase the number of indivisual [clone] -No change in clones if there it is due mutation moneran , protista , plants & certain animal - absent in higher nonvertebratres & vertebrates
- 28. B f Definition
- 29. B f 1. Binary fission in bacteria 2.Binary fission in protozoan 3. Binary fission in planarian B f 1. Binary fission in bacteria
- 33. -EXAMPLE-1---- -DNA replication while attached to mesosome - new mesosome develop - cell wall & plasma membrane grow inward - septum develop centripitally - take 20 – 30 minute
- 34. B f 1. Binary fission in bacteria 2.Binary fission in protozoan 1. Irregular bf
- 35. -plane of division of cytoplasm variable but right angle to elongated nuclus
- 36. B f 1. Binary fission in bacteria 2.Binary fission in protozoan 1. Irregular bf 2. Longitudinal b.f.
- 37. -e.g euglena - cytoplasm splits lengthwise
- 38. B f 1. Binary fission in bacteria 2.Binary fission in protozoan 1. Irregular bf 2. Longitudinal b.f. 3. Transverse b. f.
- 41. B f 1. Binary fission in bacteria 2.Binary fission in protozoan 3. Binary fission in planarian
- 42. -divide transeversely - pull , stretch , constriction & break - respective parts regrow - two worms form
- 43. B f 1. Binary fission in bacteria 2.Binary fission in protozoan 3. Binary fission in planarian 4. Reproductive unit & immortality
- 44. -As a whole organism -No dead body & disappear in to daughters
- 46. M f Definition
- 48. M f Definition 1. Multiple fission in plasmodium
- 49. - active adult [schizont] , encysted zygote [sporont] - schizogony [merozoite] & sporogony [sporozoites]
- 50. M f Definition 1. Multiple fission in plasmodium 2. Multiple fission in amoeba
- 54. Sporulation & spores Help in1- surviving unfavourable condition 2- disperse to new localities with air