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 (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?
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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 ...