Cell Division: MITOSIS
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Mitosis is a cell division that occurs in body cells. It has four stages namely: Prophase, Metaphase, Anaphase and Telophase.
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Presentation1
The document discusses mitosis, the process of cell division that results in two identical daughter cells. It describes the stages of mitosis as interphase, prophase, metaphase, anaphase and telophase. During interphase, the cell grows and its DNA is replicated. In prophase, the nuclear envelope breaks down and chromosomes condense. Metaphase arranges the chromosomes at the center. Anaphase separates the chromosomes and cytokinesis completes the formation of two new daughter cells from the single parent cell.
Meiosis
Meiosis is a type of cell division that produces gametes (eggs and sperm) with half the normal number of chromosomes. During meiosis in humans, the number of chromosomes is halved from 46 to 23. Meiosis involves two cell divisions and produces four haploid cells from one original diploid cell, increasing genetic variation between offspring.
Cell cycle & cell division
Cell division can occur via mitosis or meiosis. Mitosis produces two identical daughter cells with the same number of chromosomes as the parent cell and is used for growth and repair. Meiosis produces four haploid gametes through two cell divisions, reducing the chromosome number by half to allow sexual reproduction. Fertilization of an egg and sperm restores the full chromosome number.
Meiosis
Meiosis is the process of cell division that produces gametes, such as sperm and egg cells, which have half the number of chromosomes as regular body cells. In meiosis, a germ cell with 46 chromosomes divides twice to form four daughter cells each with 23 chromosomes. The first division, meiosis I, separates the chromosomes so that each cell receives one copy of each chromosome. The second division, meiosis II, separates sister chromatids so that four haploid cells are produced, each with only one representative from each homologous chromosome pair.
Meiosis, Sexual Reproduction, Meiosis 1 and 2
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I hope this could help. This presentation is about Meiosis and Sexual Reproduction, includes 2 stages of division the Meiosis I and Meiosis 2 with complete phases from Prophase, Prometaphase, Metaphase, Anaphae and Telophase.
Cell division
Human cells contain either 46 chromosomes (somatic cells) or 23 chromosomes (gamete cells). Somatic cells are formed through mitosis and contain homologous chromosome pairs, while gamete cells are formed through meiosis which reduces the number of chromosomes by half. Meiosis involves the production of haploid gametes through nuclear division from a parent cell containing 46 chromosomes.
Mitosis vs. meiosis
This document provides information about meiosis and compares it to mitosis. It begins by defining the cell cycle stages of interphase and M-phase. It then explains that meiosis produces 4 haploid cells through 2 nuclear divisions, while mitosis produces 2 diploid cells through 1 nuclear division. The key differences between meiosis and mitosis are summarized in a table. The document thoroughly explains the stages of meiosis I and meiosis II and provides examples of meiosis in human oogenesis and spermatogenesis. It concludes by stating that meiosis is essential for sexual reproduction and genetic variability.
Meiosis
Meiosis is a type of cell division that produces haploid gametes from a diploid cell for sexual reproduction. It involves two rounds of division called Meiosis I and Meiosis II. In Meiosis I, the chromosome number is halved and homologous chromosomes are separated into different daughter cells. Meiosis II then separates sister chromatids so that each daughter cell receives a single set of chromosomes. This process ensures genetic diversity in offspring by independent assortment of chromosomes.
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Presentation1
The document discusses mitosis, the process of cell division that results in two identical daughter cells. It describes the stages of mitosis as interphase, prophase, metaphase, anaphase and telophase. During interphase, the cell grows and its DNA is replicated. In prophase, the nuclear envelope breaks down and chromosomes condense. Metaphase arranges the chromosomes at the center. Anaphase separates the chromosomes and cytokinesis completes the formation of two new daughter cells from the single parent cell.
Meiosis
Meiosis is a type of cell division that produces gametes (eggs and sperm) with half the normal number of chromosomes. During meiosis in humans, the number of chromosomes is halved from 46 to 23. Meiosis involves two cell divisions and produces four haploid cells from one original diploid cell, increasing genetic variation between offspring.
Cell cycle & cell division
Cell division can occur via mitosis or meiosis. Mitosis produces two identical daughter cells with the same number of chromosomes as the parent cell and is used for growth and repair. Meiosis produces four haploid gametes through two cell divisions, reducing the chromosome number by half to allow sexual reproduction. Fertilization of an egg and sperm restores the full chromosome number.
Meiosis
Meiosis is the process of cell division that produces gametes, such as sperm and egg cells, which have half the number of chromosomes as regular body cells. In meiosis, a germ cell with 46 chromosomes divides twice to form four daughter cells each with 23 chromosomes. The first division, meiosis I, separates the chromosomes so that each cell receives one copy of each chromosome. The second division, meiosis II, separates sister chromatids so that four haploid cells are produced, each with only one representative from each homologous chromosome pair.
Meiosis, Sexual Reproduction, Meiosis 1 and 2
Please like and comment :)
I hope this could help. This presentation is about Meiosis and Sexual Reproduction, includes 2 stages of division the Meiosis I and Meiosis 2 with complete phases from Prophase, Prometaphase, Metaphase, Anaphae and Telophase.
Cell division
Human cells contain either 46 chromosomes (somatic cells) or 23 chromosomes (gamete cells). Somatic cells are formed through mitosis and contain homologous chromosome pairs, while gamete cells are formed through meiosis which reduces the number of chromosomes by half. Meiosis involves the production of haploid gametes through nuclear division from a parent cell containing 46 chromosomes.
Mitosis vs. meiosis
This document provides information about meiosis and compares it to mitosis. It begins by defining the cell cycle stages of interphase and M-phase. It then explains that meiosis produces 4 haploid cells through 2 nuclear divisions, while mitosis produces 2 diploid cells through 1 nuclear division. The key differences between meiosis and mitosis are summarized in a table. The document thoroughly explains the stages of meiosis I and meiosis II and provides examples of meiosis in human oogenesis and spermatogenesis. It concludes by stating that meiosis is essential for sexual reproduction and genetic variability.
Meiosis
Meiosis is a type of cell division that produces haploid gametes from a diploid cell for sexual reproduction. It involves two rounds of division called Meiosis I and Meiosis II. In Meiosis I, the chromosome number is halved and homologous chromosomes are separated into different daughter cells. Meiosis II then separates sister chromatids so that each daughter cell receives a single set of chromosomes. This process ensures genetic diversity in offspring by independent assortment of chromosomes.
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The document summarizes the process of meiosis. Meiosis produces haploid gametes through two nuclear divisions, resulting in four genetically distinct daughter cells each with half the number of chromosomes. This ensures genetic variation and maintains the diploid number of chromosomes from one generation to the next. The stages of meiosis I and meiosis II are described, including how homologous chromosomes separate and sister chromatids are distributed into four daughter cells.
Meiosis
This document provides an overview of meiosis and sexual reproduction. It defines key terms like meiosis, gamete, homologous chromosomes, and karyotype. It explains that meiosis produces haploid gametes from a diploid cell in two stages, meiosis I and meiosis II. In meiosis I, homologous chromosome pairs separate, and in meiosis II sister chromatids separate. Crossing over and independent assortment during meiosis I increase genetic diversity. Errors in meiosis can cause conditions like Down syndrome.
Mitosis & meiosis lesson 3
This document discusses cell division and its importance. It covers:
- The importance of mitosis and meiosis in producing new cells and ensuring genetic material is passed down.
- The stages of mitosis and meiosis, including prophase, metaphase, anaphase and telophase.
- How meiosis results in genetic variation through independent assortment and crossing over, producing gametes like eggs and sperm.
- Applications like tissue culture and cloning. Consequences of uncontrolled mitosis like cancer are also addressed.
Mitosis and meiosis
The cell cycle consists of interphase and the mitosis phase. Interphase includes G1, S, and G2 phases where the cell grows and duplicates its DNA. Mitosis is divided into prophase, metaphase, anaphase, and telophase where the chromosomes and cell contents are separated into two daughter cells. Meiosis includes two cell divisions to produce four haploid cells from one diploid cell. Meiosis I separates homologous chromosomes and meiosis II separates sister chromatids.
Mitosis and meiosis
An introduction to mitosis and meiosis. And full definition of this topic. Learn easy to simple English, It's to very interested
Meiosis 1 and 2
Meiosis is the process by which germ cells are produced with half the normal number of chromosomes. It occurs in two stages, Meiosis I and Meiosis II. In Meiosis I, homologous chromosomes pair up and may exchange genetic material through crossing over. The homologous chromosomes then separate, reducing the chromosome number by half. Meiosis II then divides the remaining chromatids, resulting in four haploid daughter cells that are genetically unique from each other and the original cell. Meiosis ensures genetic variation in offspring and prevents organisms from accumulating extra chromosomes over successive generations.
Chromosomes and meiosis
A Powerpoint for Grade 12 Life Sciences / Biology students focussing on chromosomes and meiosis. Contains information and diagrams on meiosis, mitosis, the structure of chromosomes, DNA and RNA
Cell division powerpoint
The document summarizes cell division and its key stages and functions. It discusses that cell division allows cells to grow and reproduce through mitosis and cytokinesis. Mitosis involves the division of the cell nucleus while cytokinesis is the division of the cytoplasm. The stages of mitosis are prophase, metaphase, anaphase and telophase where the chromosomes duplicate and separate. Cell division plays important roles in reproduction, growth and tissue repair for multicellular organisms.
5 cell and nuclear division
Mitosis allows for the growth, repair, and asexual reproduction of organisms by producing genetically identical daughter cells. It involves several stages: interphase for cell growth and DNA replication, followed by prophase, metaphase, anaphase and telophase where the chromosomes align and separate. Cytokinesis then divides the cytoplasm. Telomeres prevent loss of genes during DNA replication. Controlled mitosis is crucial for development but uncontrolled mitosis can lead to cancer if mutations disrupt cell cycle regulation and cause non-stop cell division forming tumors. Mitosis is applied in cloning through tissue culture techniques.
Cell division – meiosis
– Male and female gametes fuse together during fertilization to form a zygote. The chromosome number is halved during the formation of gametes by the process of meiosis. This maintains the chromosome number generations after generations. Meiosis leads to genetic diversity which is very essential for evolution.
MITOSIS AND MEIOSIS (cell division)
Mitosis is a type of cell division that results in two daughter cells with identical genetic material to the parent cell. It occurs through the stages of prophase, metaphase, anaphase and telophase. During interphase, the cell grows and duplicates its DNA in preparation for division. Mitosis ensures growth, repair of tissues, and asexual reproduction. Meiosis produces gametes through two divisions and results in four haploid cells each with half the number of chromosomes as the original cell. This allows for genetic variation in offspring.
Meiosis
Meiosis is a cell division process that produces gametes (sex cells) with half the normal number of chromosomes. It occurs in two stages, Meiosis I and Meiosis II. In Meiosis I, homologous chromosomes pair up and crossover can occur, then the homologous chromosomes separate. This reduces the chromosome number from diploid to haploid. Meiosis II then separates the sister chromatids, without further reducing chromosome number, producing four haploid gametes. Fertilization restores the diploid number when a sperm and egg fuse.
Meiosis and its different stages
The slides contain all about meiosis. in this slides i collected all information about meiosis. which is useful for everyone.
so watch these slides and comment for any problems.
thanks
Meiosis
Meiosis involves two cell divisions that result in four haploid cells from one original diploid cell. In meiosis I, homologous chromosomes pair up and undergo recombination during prophase I before separating. This reduces the chromosome number by half. Meiosis II separates sister chromatids, resulting in four haploid cells each with half the number of chromosomes as the original cell. Key stages include prophase I with synapsis, metaphase I separation of homologs, and metaphase II/anaphase II separation of sister chromatids. Meiosis produces gametes for sexual reproduction and genetic variation.
Cell division : mitosis and meiosis
Cell division is a process where a cell undergoes the cell cycle to duplicate its DNA and split into two daughter cells. This allows for cells to be replaced as they die in the body. There are two main types of cell division - mitosis, which produces identical body cells, and meiosis, which produces gametes like sperm and egg cells through genetic recombination and independent assortment. Meiosis involves two cell divisions and results in four haploid cells from one original diploid cell, introducing genetic diversity that is important for sexual reproduction.
Concept 12.1
Cell division results in genetically identical daughter cells and allows organisms to reproduce their own kind. It occurs through the cell cycle, where a cell replicates its DNA and divides into two daughter cells. Eukaryotic cells package their DNA into chromosomes found in the nucleus. Chromosomes are duplicated and separated into sister chromatids during cell division. There are two main types of cell division - mitosis, which produces identical body cells, and meiosis, which produces gametes like eggs and sperm with half the number of chromosomes.
Mitosis
Mitosis is the process where a cell divides into two identical daughter cells. It occurs in both plant and animal cells as part of growth and development. In plants, mitotically dividing cells are found in meristems, while in animals they are in dividing embryos and growing tissues. Mitosis maintains the same number and type of chromosomes, allowing genetic information to be identically passed to both daughter cells. It involves several phases: interphase, prophase, prometaphase, metaphase, anaphase, telophase, and cytokinesis. Cytokinesis then separates the two daughter cells through a cell plate in plants or cleavage furrow in animals.
B2.7 meiosis and mitosis
Meiosis and mitosis are two types of cell division. Meiosis occurs in sex organs and produces gametes through two divisions, resulting in four cells each with half the number of chromosomes, while mitosis occurs throughout the body and involves one division to produce two identical cells with the same number of chromosomes. The main differences are that meiosis produces gametes and reduces chromosome number, while mitosis produces somatic cells to grow and repair tissues.
Powerpoint meiosis
Meiosis is a type of cell division that results in gametes like sperm and egg cells, which have half the number of chromosomes as regular body cells. This ensures that when the gametes fuse during fertilization, the resulting zygote will have the normal chromosome number. Specifically, during meiosis the parent cell's chromosomes are divided into two daughter cells, reducing the number from 46 chromosomes to 23. Then a second round of division takes place, dividing the cells again and reducing the number to a total of 4 gametes each with 23 chromosomes. This ensures the zygote formed during fertilization has 46 chromosomes, the same as the parents.
Mitosis and meiosis
Mitosis and meiosis are the two types of cell division. Mitosis is used for growth and asexual reproduction, where one cell divides to create two identical daughter cells. It involves the stages of prophase, metaphase, anaphase and telophase. Meiosis is used for sexual reproduction and involves two cell divisions to produce four gametes with half the number of chromosomes, allowing for genetic variation when they fuse during fertilization.
Animal development lsc presentation
The document discusses the three main steps of animal development: cell division, cell differentiation, and morphogenesis. It focuses on the process of cell division (mitosis), which includes the phases of interphase, prophase, metaphase, anaphase, and telophase. Mitosis allows organisms to grow, repair damaged cells/tissues, replace dead cells, and reproduce in some organisms. It results in two identical daughter cells that are formed after the nucleus and cytoplasm divide.
3. CELL CYCLE.pptx
The document discusses the cell cycle and cell division. It is summarized as follows:
1. The cell cycle consists of interphase and mitosis. Interphase includes G1, S, and G2 phases where the cell grows and duplicates its DNA. Mitosis is when the cell divides into two identical daughter cells.
2. Cell division can occur through mitosis or meiosis. Mitosis produces somatic cells for growth and tissue repair. Meiosis produces gametes and involves two cell divisions, reducing the chromosome number by half.
3. Meiosis ensures genetic diversity by independent assortment and crossing over of homologous chromosomes. Errors in meiosis can lead to aneuploidy and chromosomal
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Meiosis
This document provides an overview of meiosis and sexual reproduction. It defines key terms like meiosis, gamete, homologous chromosomes, and karyotype. It explains that meiosis produces haploid gametes from a diploid cell in two stages, meiosis I and meiosis II. In meiosis I, homologous chromosome pairs separate, and in meiosis II sister chromatids separate. Crossing over and independent assortment during meiosis I increase genetic diversity. Errors in meiosis can cause conditions like Down syndrome.
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This document discusses cell division and its importance. It covers:
- The importance of mitosis and meiosis in producing new cells and ensuring genetic material is passed down.
- The stages of mitosis and meiosis, including prophase, metaphase, anaphase and telophase.
- How meiosis results in genetic variation through independent assortment and crossing over, producing gametes like eggs and sperm.
- Applications like tissue culture and cloning. Consequences of uncontrolled mitosis like cancer are also addressed.
Mitosis and meiosis
The cell cycle consists of interphase and the mitosis phase. Interphase includes G1, S, and G2 phases where the cell grows and duplicates its DNA. Mitosis is divided into prophase, metaphase, anaphase, and telophase where the chromosomes and cell contents are separated into two daughter cells. Meiosis includes two cell divisions to produce four haploid cells from one diploid cell. Meiosis I separates homologous chromosomes and meiosis II separates sister chromatids.
Mitosis and meiosis
An introduction to mitosis and meiosis. And full definition of this topic. Learn easy to simple English, It's to very interested
Meiosis 1 and 2
Meiosis is the process by which germ cells are produced with half the normal number of chromosomes. It occurs in two stages, Meiosis I and Meiosis II. In Meiosis I, homologous chromosomes pair up and may exchange genetic material through crossing over. The homologous chromosomes then separate, reducing the chromosome number by half. Meiosis II then divides the remaining chromatids, resulting in four haploid daughter cells that are genetically unique from each other and the original cell. Meiosis ensures genetic variation in offspring and prevents organisms from accumulating extra chromosomes over successive generations.
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A Powerpoint for Grade 12 Life Sciences / Biology students focussing on chromosomes and meiosis. Contains information and diagrams on meiosis, mitosis, the structure of chromosomes, DNA and RNA
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The document summarizes cell division and its key stages and functions. It discusses that cell division allows cells to grow and reproduce through mitosis and cytokinesis. Mitosis involves the division of the cell nucleus while cytokinesis is the division of the cytoplasm. The stages of mitosis are prophase, metaphase, anaphase and telophase where the chromosomes duplicate and separate. Cell division plays important roles in reproduction, growth and tissue repair for multicellular organisms.
5 cell and nuclear division
Mitosis allows for the growth, repair, and asexual reproduction of organisms by producing genetically identical daughter cells. It involves several stages: interphase for cell growth and DNA replication, followed by prophase, metaphase, anaphase and telophase where the chromosomes align and separate. Cytokinesis then divides the cytoplasm. Telomeres prevent loss of genes during DNA replication. Controlled mitosis is crucial for development but uncontrolled mitosis can lead to cancer if mutations disrupt cell cycle regulation and cause non-stop cell division forming tumors. Mitosis is applied in cloning through tissue culture techniques.
Cell division – meiosis
– Male and female gametes fuse together during fertilization to form a zygote. The chromosome number is halved during the formation of gametes by the process of meiosis. This maintains the chromosome number generations after generations. Meiosis leads to genetic diversity which is very essential for evolution.
MITOSIS AND MEIOSIS (cell division)
Mitosis is a type of cell division that results in two daughter cells with identical genetic material to the parent cell. It occurs through the stages of prophase, metaphase, anaphase and telophase. During interphase, the cell grows and duplicates its DNA in preparation for division. Mitosis ensures growth, repair of tissues, and asexual reproduction. Meiosis produces gametes through two divisions and results in four haploid cells each with half the number of chromosomes as the original cell. This allows for genetic variation in offspring.
Meiosis
Meiosis is a cell division process that produces gametes (sex cells) with half the normal number of chromosomes. It occurs in two stages, Meiosis I and Meiosis II. In Meiosis I, homologous chromosomes pair up and crossover can occur, then the homologous chromosomes separate. This reduces the chromosome number from diploid to haploid. Meiosis II then separates the sister chromatids, without further reducing chromosome number, producing four haploid gametes. Fertilization restores the diploid number when a sperm and egg fuse.
Meiosis and its different stages
The slides contain all about meiosis. in this slides i collected all information about meiosis. which is useful for everyone.
so watch these slides and comment for any problems.
thanks
Meiosis
Meiosis involves two cell divisions that result in four haploid cells from one original diploid cell. In meiosis I, homologous chromosomes pair up and undergo recombination during prophase I before separating. This reduces the chromosome number by half. Meiosis II separates sister chromatids, resulting in four haploid cells each with half the number of chromosomes as the original cell. Key stages include prophase I with synapsis, metaphase I separation of homologs, and metaphase II/anaphase II separation of sister chromatids. Meiosis produces gametes for sexual reproduction and genetic variation.
Cell division : mitosis and meiosis
Cell division is a process where a cell undergoes the cell cycle to duplicate its DNA and split into two daughter cells. This allows for cells to be replaced as they die in the body. There are two main types of cell division - mitosis, which produces identical body cells, and meiosis, which produces gametes like sperm and egg cells through genetic recombination and independent assortment. Meiosis involves two cell divisions and results in four haploid cells from one original diploid cell, introducing genetic diversity that is important for sexual reproduction.
Concept 12.1
Cell division results in genetically identical daughter cells and allows organisms to reproduce their own kind. It occurs through the cell cycle, where a cell replicates its DNA and divides into two daughter cells. Eukaryotic cells package their DNA into chromosomes found in the nucleus. Chromosomes are duplicated and separated into sister chromatids during cell division. There are two main types of cell division - mitosis, which produces identical body cells, and meiosis, which produces gametes like eggs and sperm with half the number of chromosomes.
Mitosis
Mitosis is the process where a cell divides into two identical daughter cells. It occurs in both plant and animal cells as part of growth and development. In plants, mitotically dividing cells are found in meristems, while in animals they are in dividing embryos and growing tissues. Mitosis maintains the same number and type of chromosomes, allowing genetic information to be identically passed to both daughter cells. It involves several phases: interphase, prophase, prometaphase, metaphase, anaphase, telophase, and cytokinesis. Cytokinesis then separates the two daughter cells through a cell plate in plants or cleavage furrow in animals.
B2.7 meiosis and mitosis
Meiosis and mitosis are two types of cell division. Meiosis occurs in sex organs and produces gametes through two divisions, resulting in four cells each with half the number of chromosomes, while mitosis occurs throughout the body and involves one division to produce two identical cells with the same number of chromosomes. The main differences are that meiosis produces gametes and reduces chromosome number, while mitosis produces somatic cells to grow and repair tissues.
Powerpoint meiosis
Meiosis is a type of cell division that results in gametes like sperm and egg cells, which have half the number of chromosomes as regular body cells. This ensures that when the gametes fuse during fertilization, the resulting zygote will have the normal chromosome number. Specifically, during meiosis the parent cell's chromosomes are divided into two daughter cells, reducing the number from 46 chromosomes to 23. Then a second round of division takes place, dividing the cells again and reducing the number to a total of 4 gametes each with 23 chromosomes. This ensures the zygote formed during fertilization has 46 chromosomes, the same as the parents.
Mitosis and meiosis
Mitosis and meiosis are the two types of cell division. Mitosis is used for growth and asexual reproduction, where one cell divides to create two identical daughter cells. It involves the stages of prophase, metaphase, anaphase and telophase. Meiosis is used for sexual reproduction and involves two cell divisions to produce four gametes with half the number of chromosomes, allowing for genetic variation when they fuse during fertilization.
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Don't miss this opportunity to deepen your knowledge and appreciation of cell biology. Embark on a journey into the heart of cell division and discover the dance of life's continuity unfolding before your eyes.
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Cell Division: MITOSIS
- 1. CELL DIVISION By: MARY GRACE LATRAS
- 2. Why Do Cells Divide? 1. Growth 2. Repair 3. Reproduction
- 3. Cell Division Cycle G1- Cell growth S Phase- DNA synthesis G2- period between the end of DNA replication and the start of cell division M Phase- actual period of cell division
- 4. Chromosomes
- 5. Chromosomes A chromosome is a DNA molecule that carries all or part of the hereditary information of an organism.
- 6. Chromosomes
- 7. Chromosomes Humans most commonly have 22 pairs of autosomes and 1 pair of sex chromosomes (XX or XY), for a total of 46 chromosomes.
- 8. Chromosomes Chromosomes that do not differ between males and females are called autosomes. The chromosomes that differ between males and females are the sex chromosomes.
- 9. What is Mitosis? -is a method of cell division in which a cell divides and produces identical copies of itself. 4 stages: Prophase Metaphase Anaphase Telophase
- 10. Prophase chromosomes condense Each chromosome consists of a pair of identical sister chromatids joined at the centromere.
- 11. Prophase Microtubules form The nuclear envelope breaks down
- 12. Metaphase chromosomes line up at the middle of the cell, along the plane of cell division, pushed and pulled by microtubules of the spindle apparatus
- 14. Telophase Nuclear envelope form around chromosomes Chromosomes uncoil Cytokinesis
- 15. Cytokinesis
- 16. Animal Cell vs. Plant Cell