checkpoint3 - undergo mitosis for growth, development,...

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Mitosis and Meiosis are cellular processes that living organisms heavily depend on. These processes prepare the body cells to participate in either asexual or sexual reproduction to make an entire organism. Mitosis is a process of cell division which results in the production of two daughter cells from a single parent cell. The daughter cells are identical to one another and to the original parent cell. Mitosis can be divided into four stages; prophase, metaphase, anaphase, and telophase. In Prophase the chromosomes are created and they bundle together within the cell. In metaphase the chromosomes become attached to the spindle fibers. Anaphase is the third stage of the process and here the chromosomes move away from one another to opposite poles of the spindle. Teleophase is the final stage of mitosis during which the chromosomes of daughter cells are grouped in the new nuclei. An organism would
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Unformatted text preview: undergo mitosis for growth, development, repair, and asexual reproduction. An example would be, skin growing back after a bad cut, hair growing after you cut it, or cancerous cells developing in your body. Meiosis is the production of sperm and egg cells. These cells are called gamete or sex cells. Meiosis is important for organism reproduction. There are two stages of Meiosis, Meiosis I and Meiosis II. In Meiosis I, chromosomes in a diploid cell resegregate, producing four haploid daughter cells. This step in meiosis generates genetic diversity. Meiosis II is similar to mitosis. The chromatids of each chromosome are no longer identical because of recombination. Meiosis II separates the chromatids producing two daughter cells each with 23 chromosomes (haploid), and each chromosome has only one chromatid. ....
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This note was uploaded on 06/12/2011 for the course BIO 100 taught by Professor Lee during the Spring '08 term at Alabama A&M University.

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