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Wi09 Homework 2

Wi09 Homework 2 - Genetics Homework#2 – Due in lecture...

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Unformatted text preview: Genetics Homework #2 – Due in lecture Wednesday, January 28 You must include your name, your Student ID, your TA’s name, and your section number at the top of your paper. You may type or write, as long as it is neat and legible. 1. Drosophila virilis is a diploid organism with 6 pairs of chromosomes (12 chromosomes altogether). How many chromatids and chromosomes are present in one cell that is in the following stages of cell division: a. Prophase of mitosis? b. Metaphase I of meiosis? c. Metaphase II of meiosis? d. Anaphase II of meiosis? 2. For a diploid organism with 2 pairs of chromosomes, one of which is large and telocentric and the other of which is smaller and metacentric, diagram a cell at the following stages of cell division: a. Anaphase I of meiosis. b. Metaphase II of meiosis. 3. At what stage of meiosis does chromosome disjunction occur? At what stage of meiosis does chromatid disjunction occur? ...
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