Chromosomes differ between prokaryotes and eukaryotes. Prokaryotes have a single circular chromosome while eukaryotes have multiple linear chromosomes contained within a nucleus. Eukaryotic chromosomes are made of chromatin, with DNA coiled around histone proteins. Chromosome number is constant within species but can vary between species. Chromosomes carry genetic information and are copied prior to cell division through mitosis or meiosis. Meiosis produces gametes with half the normal chromosome number for sexual reproduction.
The document discusses genetics and how genetic information is passed from parents to offspring. It explains that DNA molecules carry genes located on chromosomes, and genes provide instructions that determine characteristics. The document also describes the processes of cell division, including mitosis which produces identical cells and meiosis which produces gametes through two cell divisions. In summary, the document outlines the basics of genetics including DNA, genes, chromosomes, and the cellular processes of mitosis and meiosis.
Heredity involves the transmission of genetic information from parents to offspring. Genetics is the study of heredity. Mitosis and meiosis are the two types of cell division involved in heredity. Mitosis produces genetically identical cells for growth and tissue repair, while meiosis produces haploid gametes through two divisions resulting in four genetically distinct cells. Meiosis ensures genetic diversity and integrity in sexually reproducing organisms.
This document provides an overview of cell division and the cell cycle. It summarizes that cell division allows organisms to reproduce and is essential for growth, development, and repair of multicellular organisms. The cell cycle consists of interphase, where the cell grows and DNA replicates, and mitosis, where the genetic material divides. Key events of mitosis include proper chromosome condensation and segregation facilitated by the mitotic spindle. Cytokinesis then divides the cytoplasm to complete cell division.
1. Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and separate, while in meiosis II sister chromatids separate, resulting in four haploid daughter cells.
2. Key events in meiosis include DNA replication, chromosome pairing and crossing over, alignment at the metaphase plate, and separation of chromosomes to opposite poles. This ensures genetic variation between gametes and prevents doubling of the chromosome number each generation.
3. Errors in meiosis can result in aneuploidy disorders like Down syndrome through nondisjunction. Structural chromosome changes such as deletions, duplications, inversions and
This document summarizes meiosis and sexual life cycles. It discusses how meiosis and fertilization produce genetic variation through independent assortment of chromosomes, crossing over, and random fertilization. This genetic variation is the raw material for evolution by natural selection and allows organisms to evolve and adapt to their environment. Sexual reproduction, through meiosis and fertilization, generates new combinations of genes not present in the parents, increasing genetic diversity within populations.
The document summarizes key aspects of the cell cycle and cell division:
1) It describes the main stages of the cell cycle - interphase and mitosis - and explains that interphase involves cell growth while mitosis involves nuclear and cellular division.
2) It explains that mitosis results in two identical daughter cells through equal distribution of chromosomes, while meiosis results in non-identical gametes through reduction of chromosome number.
3) It provides an overview of the stages of mitosis (prophase, prometaphase, metaphase, anaphase, telophase) and cytokinesis and describes the role of the mitotic spindle in separating chromosomes.
Mitosis and meiosis are the two types of cell division. Mitosis produces two daughter cells from one parent cell and maintains the same number of chromosomes. It is important for growth, development, and replacing damaged cells. Meiosis produces four daughter cells with half the number of chromosomes from one parent cell and is important for sexual reproduction and genetic variation in offspring.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair up and separate, resulting in two haploid cells. These cells each undergo meiosis II, where the sister chromatids separate, resulting in four haploid cells that can fuse during fertilization. This ensures genetic variation between offspring and prevents doubling of the chromosome number each generation. Errors during meiosis can result in aneuploidy and genetic disorders.
The document discusses genetics and how genetic information is passed from parents to offspring. It explains that DNA molecules carry genes located on chromosomes, and genes provide instructions that determine characteristics. The document also describes the processes of cell division, including mitosis which produces identical cells and meiosis which produces gametes through two cell divisions. In summary, the document outlines the basics of genetics including DNA, genes, chromosomes, and the cellular processes of mitosis and meiosis.
Heredity involves the transmission of genetic information from parents to offspring. Genetics is the study of heredity. Mitosis and meiosis are the two types of cell division involved in heredity. Mitosis produces genetically identical cells for growth and tissue repair, while meiosis produces haploid gametes through two divisions resulting in four genetically distinct cells. Meiosis ensures genetic diversity and integrity in sexually reproducing organisms.
This document provides an overview of cell division and the cell cycle. It summarizes that cell division allows organisms to reproduce and is essential for growth, development, and repair of multicellular organisms. The cell cycle consists of interphase, where the cell grows and DNA replicates, and mitosis, where the genetic material divides. Key events of mitosis include proper chromosome condensation and segregation facilitated by the mitotic spindle. Cytokinesis then divides the cytoplasm to complete cell division.
1. Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and separate, while in meiosis II sister chromatids separate, resulting in four haploid daughter cells.
2. Key events in meiosis include DNA replication, chromosome pairing and crossing over, alignment at the metaphase plate, and separation of chromosomes to opposite poles. This ensures genetic variation between gametes and prevents doubling of the chromosome number each generation.
3. Errors in meiosis can result in aneuploidy disorders like Down syndrome through nondisjunction. Structural chromosome changes such as deletions, duplications, inversions and
This document summarizes meiosis and sexual life cycles. It discusses how meiosis and fertilization produce genetic variation through independent assortment of chromosomes, crossing over, and random fertilization. This genetic variation is the raw material for evolution by natural selection and allows organisms to evolve and adapt to their environment. Sexual reproduction, through meiosis and fertilization, generates new combinations of genes not present in the parents, increasing genetic diversity within populations.
The document summarizes key aspects of the cell cycle and cell division:
1) It describes the main stages of the cell cycle - interphase and mitosis - and explains that interphase involves cell growth while mitosis involves nuclear and cellular division.
2) It explains that mitosis results in two identical daughter cells through equal distribution of chromosomes, while meiosis results in non-identical gametes through reduction of chromosome number.
3) It provides an overview of the stages of mitosis (prophase, prometaphase, metaphase, anaphase, telophase) and cytokinesis and describes the role of the mitotic spindle in separating chromosomes.
Mitosis and meiosis are the two types of cell division. Mitosis produces two daughter cells from one parent cell and maintains the same number of chromosomes. It is important for growth, development, and replacing damaged cells. Meiosis produces four daughter cells with half the number of chromosomes from one parent cell and is important for sexual reproduction and genetic variation in offspring.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair up and separate, resulting in two haploid cells. These cells each undergo meiosis II, where the sister chromatids separate, resulting in four haploid cells that can fuse during fertilization. This ensures genetic variation between offspring and prevents doubling of the chromosome number each generation. Errors during meiosis can result in aneuploidy and genetic disorders.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over, then separate. This reduces the chromosome number by half to produce haploid cells. Meiosis II then divides the contents of these haploid cells without further combining of homologs, resulting in four haploid gametes. Two gametes combine at fertilization to form a diploid zygote and complete the life cycle.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over, then separate. This reduces the chromosome number by half to produce haploid cells. Meiosis II then divides the contents of these haploid cells without further combining of homologs, resulting in four haploid gametes. Two gametes combine at fertilization to form a diploid zygote and complete the life cycle.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over, then separate. This reduces the chromosome number by half to produce haploid cells. Meiosis II then divides the contents of these haploid cells without further combining of homologs, resulting in four haploid gametes. Two gametes combine at fertilization to form a diploid zygote and complete the life cycle.
Explains more on how genetic variation takes place amongst people, why some people tend to have the same features and why they are also different genetically and phenotically (physically)
This PowerPoint presentation contains diagrams and explanations of mitosis, meiosis, and meiotic non-disjunction. It discusses the purpose and mechanisms of mitosis and meiosis, including their roles in cell division and genetic variation. Examples of chromosomal abnormalities resulting from meiotic non-disjunction like Down syndrome are provided.
Meiosis is the process of cell division that produces gametes (sperm or egg cells) with half the normal number of chromosomes. It involves two rounds of division (Meiosis I and Meiosis II) that result in four haploid daughter cells from one original diploid parent cell. During meiosis, homologous chromosomes pair up and may exchange genetic material through crossing over, introducing variation into the gametes and offspring. Fertilization occurs when a sperm fuses with an egg, restoring the normal diploid chromosome number.
Meiosis is the process by which germ cells such as eggs and sperm are produced, resulting in 4 haploid cells with half the normal number of chromosomes. This ensures that when an egg and sperm fuse during fertilization, the offspring has the correct diploid number of chromosomes. Meiosis involves two divisions and stages including prophase I, metaphase I, anaphase I and telophase I, followed by a second round of division.
This document discusses cell division and heredity. It explains that there are two types of cell division: mitosis and meiosis. Mitosis produces two daughter cells with the same number of chromosomes as the parent cell and is important for growth and replacing damaged cells. Meiosis produces four daughter cells with half the number of chromosomes and allows for genetic variation among a species by producing gametes like sperm and eggs.
The document provides an overview of meiosis and sexual life cycles. It discusses three key concepts: 1) Offspring acquire genes from parents through inheriting chromosomes during sexual reproduction. 2) Fertilization and meiosis alternate in sexual life cycles to maintain chromosome number. 3) Meiosis reduces the number of chromosome sets from diploid to haploid through two cell divisions, resulting in four haploid daughter cells rather than the two produced by mitosis. The document also compares asexual and sexual reproduction, and describes the stages of meiosis and different sexual life cycles in animals, plants, and fungi.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. Meiosis I involves homologous chromosome pairing and separation. Meiosis II is similar to mitosis and separates sister chromatids. This ensures genetic variation between gametes and prevents doubling of the chromosome number each generation. Errors in meiosis can result in aneuploidy disorders like Down syndrome through nondisjunction of chromosomes.
Meiosis is a type of cell division that produces haploid gametes from diploid cells. It has two stages, meiosis I and meiosis II. Meiosis I separates homologous chromosomes, resulting in two haploid cells. Meiosis II then separates sister chromatids, resulting in four haploid cells that can fuse during fertilization to form a diploid zygote. Errors during meiosis can lead to chromosomal abnormalities like Down syndrome through nondisjunction of chromosomes.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over before separating, resulting in haploid daughter cells. Meiosis II then follows without intervening DNA replication to generate four haploid gametes total. This ensures each gamete has a single set of chromosomes and allows for genetic variation from independent assortment and recombination during meiosis I.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over, then separate. This reduces the chromosome number by half to produce haploid cells. Meiosis II then divides the contents of these haploid cells without further combining of homologs, resulting in four haploid gametes. Two gametes combine at fertilization to form a diploid zygote and complete the life cycle.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over before separating, resulting in haploid daughter cells. Meiosis II then follows without intervening DNA replication to generate four haploid gametes. This ensures each gamete has a single set of chromosomes and allows for genetic variation from independent assortment and recombination during meiosis I.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over before separating, resulting in haploid daughter cells. Meiosis II then follows without intervening DNA replication to generate four haploid gametes total. This ensures each gamete has a single set of chromosomes and allows for genetic variation from independent assortment and recombination during meiosis I.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. Meiosis I involves homologous chromosome pairing and separation. Meiosis II is similar to mitosis and separates sister chromatids. This ensures each gamete has a random assortment of one chromosome from each homologous pair, allowing for genetic variation in offspring through independent assortment and crossing over during prophase I. Errors in meiosis can result in aneuploidy disorders like Down syndrome through nondisjunction.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over before separating, resulting in haploid daughter cells. Meiosis II then separates the sister chromatids, producing four haploid gametes. Errors in meiosis can result in aneuploidy, causing conditions like Down syndrome, or structural changes to chromosomes that may cause genetic disorders or cancer.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over, then separate. This reduces the chromosome number by half to produce haploid cells. Meiosis II then divides the contents of these haploid cells without further combining of homologs, resulting in four haploid gametes. This ensures each gamete has a random set of one of each type of chromosome, allowing for genetic variation in offspring.
Meiosis is a type of cell division that produces haploid gametes from diploid cells. It has two stages, meiosis I and meiosis II. Meiosis I separates homologous chromosomes, resulting in two haploid daughter cells. Meiosis II then separates sister chromatids, resulting in four haploid cells that can fuse during fertilization to form a diploid zygote. Crossing over and independent assortment during meiosis increase genetic variation between gametes.
1. The document discusses meiosis and sexual life cycles. It describes how meiosis reduces the number of chromosome sets from diploid to haploid through two cell divisions, resulting in four haploid daughter cells.
2. It explains three main types of sexual life cycles - in animals, plants, and fungi. In animals, meiosis produces gametes which fuse during fertilization. Plants exhibit an alternation of generations between haploid and diploid stages. In fungi, only the zygote is diploid.
3. Meiosis and fertilization alternate in sexual life cycles to generate genetic variation between generations and maintain chromosome number.
1) Meiosis reduces the number of chromosome sets from diploid to haploid through two cell divisions, resulting in four haploid daughter cells rather than the two produced by mitosis.
2) During meiosis I, homologous chromosome pairs separate and move to opposite poles, while sister chromatids remain attached. This reduces the chromosome number by half.
3) Meiosis II then separates the sister chromatids, resulting in four haploid daughter cells, each with half the number of chromosomes as the original diploid parent cell. This ensures genetic variation between gametes.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over, then separate. This reduces the chromosome number by half to produce haploid cells. Meiosis II then divides the contents of these haploid cells without further combining of homologs, resulting in four haploid gametes. Two gametes combine at fertilization to form a diploid zygote and complete the life cycle.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over, then separate. This reduces the chromosome number by half to produce haploid cells. Meiosis II then divides the contents of these haploid cells without further combining of homologs, resulting in four haploid gametes. Two gametes combine at fertilization to form a diploid zygote and complete the life cycle.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over, then separate. This reduces the chromosome number by half to produce haploid cells. Meiosis II then divides the contents of these haploid cells without further combining of homologs, resulting in four haploid gametes. Two gametes combine at fertilization to form a diploid zygote and complete the life cycle.
Explains more on how genetic variation takes place amongst people, why some people tend to have the same features and why they are also different genetically and phenotically (physically)
This PowerPoint presentation contains diagrams and explanations of mitosis, meiosis, and meiotic non-disjunction. It discusses the purpose and mechanisms of mitosis and meiosis, including their roles in cell division and genetic variation. Examples of chromosomal abnormalities resulting from meiotic non-disjunction like Down syndrome are provided.
Meiosis is the process of cell division that produces gametes (sperm or egg cells) with half the normal number of chromosomes. It involves two rounds of division (Meiosis I and Meiosis II) that result in four haploid daughter cells from one original diploid parent cell. During meiosis, homologous chromosomes pair up and may exchange genetic material through crossing over, introducing variation into the gametes and offspring. Fertilization occurs when a sperm fuses with an egg, restoring the normal diploid chromosome number.
Meiosis is the process by which germ cells such as eggs and sperm are produced, resulting in 4 haploid cells with half the normal number of chromosomes. This ensures that when an egg and sperm fuse during fertilization, the offspring has the correct diploid number of chromosomes. Meiosis involves two divisions and stages including prophase I, metaphase I, anaphase I and telophase I, followed by a second round of division.
This document discusses cell division and heredity. It explains that there are two types of cell division: mitosis and meiosis. Mitosis produces two daughter cells with the same number of chromosomes as the parent cell and is important for growth and replacing damaged cells. Meiosis produces four daughter cells with half the number of chromosomes and allows for genetic variation among a species by producing gametes like sperm and eggs.
The document provides an overview of meiosis and sexual life cycles. It discusses three key concepts: 1) Offspring acquire genes from parents through inheriting chromosomes during sexual reproduction. 2) Fertilization and meiosis alternate in sexual life cycles to maintain chromosome number. 3) Meiosis reduces the number of chromosome sets from diploid to haploid through two cell divisions, resulting in four haploid daughter cells rather than the two produced by mitosis. The document also compares asexual and sexual reproduction, and describes the stages of meiosis and different sexual life cycles in animals, plants, and fungi.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. Meiosis I involves homologous chromosome pairing and separation. Meiosis II is similar to mitosis and separates sister chromatids. This ensures genetic variation between gametes and prevents doubling of the chromosome number each generation. Errors in meiosis can result in aneuploidy disorders like Down syndrome through nondisjunction of chromosomes.
Meiosis is a type of cell division that produces haploid gametes from diploid cells. It has two stages, meiosis I and meiosis II. Meiosis I separates homologous chromosomes, resulting in two haploid cells. Meiosis II then separates sister chromatids, resulting in four haploid cells that can fuse during fertilization to form a diploid zygote. Errors during meiosis can lead to chromosomal abnormalities like Down syndrome through nondisjunction of chromosomes.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over before separating, resulting in haploid daughter cells. Meiosis II then follows without intervening DNA replication to generate four haploid gametes total. This ensures each gamete has a single set of chromosomes and allows for genetic variation from independent assortment and recombination during meiosis I.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over, then separate. This reduces the chromosome number by half to produce haploid cells. Meiosis II then divides the contents of these haploid cells without further combining of homologs, resulting in four haploid gametes. Two gametes combine at fertilization to form a diploid zygote and complete the life cycle.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over before separating, resulting in haploid daughter cells. Meiosis II then follows without intervening DNA replication to generate four haploid gametes. This ensures each gamete has a single set of chromosomes and allows for genetic variation from independent assortment and recombination during meiosis I.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over before separating, resulting in haploid daughter cells. Meiosis II then follows without intervening DNA replication to generate four haploid gametes total. This ensures each gamete has a single set of chromosomes and allows for genetic variation from independent assortment and recombination during meiosis I.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. Meiosis I involves homologous chromosome pairing and separation. Meiosis II is similar to mitosis and separates sister chromatids. This ensures each gamete has a random assortment of one chromosome from each homologous pair, allowing for genetic variation in offspring through independent assortment and crossing over during prophase I. Errors in meiosis can result in aneuploidy disorders like Down syndrome through nondisjunction.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over before separating, resulting in haploid daughter cells. Meiosis II then separates the sister chromatids, producing four haploid gametes. Errors in meiosis can result in aneuploidy, causing conditions like Down syndrome, or structural changes to chromosomes that may cause genetic disorders or cancer.
Meiosis is a type of cell division that produces haploid gametes from diploid cells in two stages. In meiosis I, homologous chromosomes pair and undergo crossing over, then separate. This reduces the chromosome number by half to produce haploid cells. Meiosis II then divides the contents of these haploid cells without further combining of homologs, resulting in four haploid gametes. This ensures each gamete has a random set of one of each type of chromosome, allowing for genetic variation in offspring.
Meiosis is a type of cell division that produces haploid gametes from diploid cells. It has two stages, meiosis I and meiosis II. Meiosis I separates homologous chromosomes, resulting in two haploid daughter cells. Meiosis II then separates sister chromatids, resulting in four haploid cells that can fuse during fertilization to form a diploid zygote. Crossing over and independent assortment during meiosis increase genetic variation between gametes.
1. The document discusses meiosis and sexual life cycles. It describes how meiosis reduces the number of chromosome sets from diploid to haploid through two cell divisions, resulting in four haploid daughter cells.
2. It explains three main types of sexual life cycles - in animals, plants, and fungi. In animals, meiosis produces gametes which fuse during fertilization. Plants exhibit an alternation of generations between haploid and diploid stages. In fungi, only the zygote is diploid.
3. Meiosis and fertilization alternate in sexual life cycles to generate genetic variation between generations and maintain chromosome number.
1) Meiosis reduces the number of chromosome sets from diploid to haploid through two cell divisions, resulting in four haploid daughter cells rather than the two produced by mitosis.
2) During meiosis I, homologous chromosome pairs separate and move to opposite poles, while sister chromatids remain attached. This reduces the chromosome number by half.
3) Meiosis II then separates the sister chromatids, resulting in four haploid daughter cells, each with half the number of chromosomes as the original diploid parent cell. This ensures genetic variation between gametes.
1. The document discusses meiosis and sexual life cycles in biology. It provides details on the stages of meiosis, including prophase I, metaphase I, anaphase I and telophase I.
2. Meiosis results in four haploid daughter cells rather than two, and reduces the number of chromosome sets from diploid to haploid. It occurs in two divisions: meiosis I and meiosis II.
3. There are three main types of sexual life cycles that differ in the timing of meiosis and fertilization - in animals, plants and fungi. This ensures genetic variation between generations.
This document provides an overview of meiosis and sexual life cycles by discussing:
- The transmission of traits from parents to offspring through inheritance of genes and chromosomes.
- The differences between asexual and sexual reproduction, and how meiosis and fertilization alternate in sexual life cycles.
- The three main types of sexual life cycles seen in animals, plants/algae, and fungi/protists with regards to timing of meiosis, fertilization, and diploid/haploid stages.
- Key cellular processes like meiosis, fertilization, mitosis and their roles in maintaining chromosome number and producing genetic variation in offspring.
Meiosis is the process by which germ cells are produced with half the normal number of chromosomes. It involves two cell divisions that result in four haploid cells from one original diploid cell. This ensures genetic variation between parents and offspring and maintains chromosome number from one generation to the next. Errors during meiosis can result in gametes with an extra or missing chromosome, leading to disorders like Down syndrome, Klinefelter syndrome, and Turner syndrome.
Mitosis and meiosis are types of cell division. Mitosis produces two identical daughter cells through replication of the parent cell's chromosomes. Meiosis reduces the chromosome number by half to produce gametes involved in sexual reproduction, which combines genetic material from two parents to form a unique child.
Meiosis reduces the number of chromosome sets from diploid to haploid in two cell divisions to produce gametes. It begins with chromosome duplication followed by two cell divisions, meiosis I and meiosis II. In meiosis I, homologous chromosomes separate and move to opposite poles, resulting in haploid daughter cells. Meiosis II then separates the sister chromatids, resulting in four haploid daughter cells each with a random assortment of one chromosome from each homologous pair. This ensures genetic variation in the offspring from sexual reproduction.
Mitosis and meiosis are two types of cell division. Mitosis produces two daughter cells that are genetically identical to the parent cell and is important for growth, repair, and asexual reproduction. Meiosis produces four haploid gametes through two divisions. It reduces the chromosome number by half to ensure fertilization restores the diploid number. Meiosis leads to genetic variation between offspring through independent assortment and crossing over during prophase I.
This document discusses inheritance and chromosomes. It explains that chromosomes are found in cell nuclei and are responsible for passing on traits from parents to children. Chromosomes come in different numbers depending on the species. In humans, there are 23 pairs of chromosomes. The document describes DNA structure and how genetic information is contained on chromosomes. It explains meiosis and fertilization, how this process halves chromosome numbers and results in variation among sex cells to produce offspring with unique combinations of parental chromosomes. Sex is determined by X and Y chromosomes, with a 50% chance of producing a male or female child.
"Choosing proper type of scaling", Olena SyrotaFwdays
Imagine an IoT processing system that is already quite mature and production-ready and for which client coverage is growing and scaling and performance aspects are life and death questions. The system has Redis, MongoDB, and stream processing based on ksqldb. In this talk, firstly, we will analyze scaling approaches and then select the proper ones for our system.
Your One-Stop Shop for Python Success: Top 10 US Python Development Providersakankshawande
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
5th LF Energy Power Grid Model Meet-up SlidesDanBrown980551
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
What is an RPA CoE? Session 1 – CoE VisionDianaGray10
In the first session, we will review the organization's vision and how this has an impact on the COE Structure.
Topics covered:
• The role of a steering committee
• How do the organization’s priorities determine CoE Structure?
Speaker:
Chris Bolin, Senior Intelligent Automation Architect Anika Systems
Dandelion Hashtable: beyond billion requests per second on a commodity serverAntonios Katsarakis
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
Driving Business Innovation: Latest Generative AI Advancements & Success StorySafe Software
Are you ready to revolutionize how you handle data? Join us for a webinar where we’ll bring you up to speed with the latest advancements in Generative AI technology and discover how leveraging FME with tools from giants like Google Gemini, Amazon, and Microsoft OpenAI can supercharge your workflow efficiency.
During the hour, we’ll take you through:
Guest Speaker Segment with Hannah Barrington: Dive into the world of dynamic real estate marketing with Hannah, the Marketing Manager at Workspace Group. Hear firsthand how their team generates engaging descriptions for thousands of office units by integrating diverse data sources—from PDF floorplans to web pages—using FME transformers, like OpenAIVisionConnector and AnthropicVisionConnector. This use case will show you how GenAI can streamline content creation for marketing across the board.
Ollama Use Case: Learn how Scenario Specialist Dmitri Bagh has utilized Ollama within FME to input data, create custom models, and enhance security protocols. This segment will include demos to illustrate the full capabilities of FME in AI-driven processes.
Custom AI Models: Discover how to leverage FME to build personalized AI models using your data. Whether it’s populating a model with local data for added security or integrating public AI tools, find out how FME facilitates a versatile and secure approach to AI.
We’ll wrap up with a live Q&A session where you can engage with our experts on your specific use cases, and learn more about optimizing your data workflows with AI.
This webinar is ideal for professionals seeking to harness the power of AI within their data management systems while ensuring high levels of customization and security. Whether you're a novice or an expert, gain actionable insights and strategies to elevate your data processes. Join us to see how FME and AI can revolutionize how you work with data!
[OReilly Superstream] Occupy the Space: A grassroots guide to engineering (an...Jason Yip
The typical problem in product engineering is not bad strategy, so much as “no strategy”. This leads to confusion, lack of motivation, and incoherent action. The next time you look for a strategy and find an empty space, instead of waiting for it to be filled, I will show you how to fill it in yourself. If you’re wrong, it forces a correction. If you’re right, it helps create focus. I’ll share how I’ve approached this in the past, both what works and lessons for what didn’t work so well.
The Microsoft 365 Migration Tutorial For Beginner.pptxoperationspcvita
This presentation will help you understand the power of Microsoft 365. However, we have mentioned every productivity app included in Office 365. Additionally, we have suggested the migration situation related to Office 365 and how we can help you.
You can also read: https://www.systoolsgroup.com/updates/office-365-tenant-to-tenant-migration-step-by-step-complete-guide/
AppSec PNW: Android and iOS Application Security with MobSFAjin Abraham
Mobile Security Framework - MobSF is a free and open source automated mobile application security testing environment designed to help security engineers, researchers, developers, and penetration testers to identify security vulnerabilities, malicious behaviours and privacy concerns in mobile applications using static and dynamic analysis. It supports all the popular mobile application binaries and source code formats built for Android and iOS devices. In addition to automated security assessment, it also offers an interactive testing environment to build and execute scenario based test/fuzz cases against the application.
This talk covers:
Using MobSF for static analysis of mobile applications.
Interactive dynamic security assessment of Android and iOS applications.
Solving Mobile app CTF challenges.
Reverse engineering and runtime analysis of Mobile malware.
How to shift left and integrate MobSF/mobsfscan SAST and DAST in your build pipeline.
How information systems are built or acquired puts information, which is what they should be about, in a secondary place. Our language adapted accordingly, and we no longer talk about information systems but applications. Applications evolved in a way to break data into diverse fragments, tightly coupled with applications and expensive to integrate. The result is technical debt, which is re-paid by taking even bigger "loans", resulting in an ever-increasing technical debt. Software engineering and procurement practices work in sync with market forces to maintain this trend. This talk demonstrates how natural this situation is. The question is: can something be done to reverse the trend?
Ivanti’s Patch Tuesday breakdown goes beyond patching your applications and brings you the intelligence and guidance needed to prioritize where to focus your attention first. Catch early analysis on our Ivanti blog, then join industry expert Chris Goettl for the Patch Tuesday Webinar Event. There we’ll do a deep dive into each of the bulletins and give guidance on the risks associated with the newly-identified vulnerabilities.
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor IvaniukFwdays
At this talk we will discuss DDoS protection tools and best practices, discuss network architectures and what AWS has to offer. Also, we will look into one of the largest DDoS attacks on Ukrainian infrastructure that happened in February 2022. We'll see, what techniques helped to keep the web resources available for Ukrainians and how AWS improved DDoS protection for all customers based on Ukraine experience
Conversational agents, or chatbots, are increasingly used to access all sorts of services using natural language. While open-domain chatbots - like ChatGPT - can converse on any topic, task-oriented chatbots - the focus of this paper - are designed for specific tasks, like booking a flight, obtaining customer support, or setting an appointment. Like any other software, task-oriented chatbots need to be properly tested, usually by defining and executing test scenarios (i.e., sequences of user-chatbot interactions). However, there is currently a lack of methods to quantify the completeness and strength of such test scenarios, which can lead to low-quality tests, and hence to buggy chatbots.
To fill this gap, we propose adapting mutation testing (MuT) for task-oriented chatbots. To this end, we introduce a set of mutation operators that emulate faults in chatbot designs, an architecture that enables MuT on chatbots built using heterogeneous technologies, and a practical realisation as an Eclipse plugin. Moreover, we evaluate the applicability, effectiveness and efficiency of our approach on open-source chatbots, with promising results.