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    Meiosis

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    How many types of telophase II products can be formed if a homozygote (AA or aa) is under study?

    How many types of telophase II products can be formed if a heterozygote (Aa) is under study?

    How many kinds of gametes can be formed if the genotype is AABB? Make a drawing of this type of cell in Prophase I. Label the chromosomes.

    How many kinds of gametes can be formed if the genotype is AaBb? Make a drawing of this type of cell in Prophase I (zygotene). Label the chromosomes.

    How does each one of the Telophase II products (one of the 4 cells in the tetrad) compare with the Prophase I cell with regard to chromosome number?

    (See attached file for full problem description)

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    If an organism has the genotype AABB, the only possible gametes have the genotype AB.

    In Prophase I (first step in meiosis), homologous chromosomes pair up. Each of the chromosomes is made up of 2 sister chromatids because the chromosomes have already replicated (this happened during interphase), so the cell looks like this:

    A A A A

    B B B B

    If you can't see the diagram, there are 2 homologous chromosomes each made up of 2 sister chromatids, each will the alleles A and B. I'm assuming that the A and B genes are on the same chromosome. If they ...

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