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Unformatted text preview: Ans: (1) Anaphase: (f), (h); (2) metaphase: (e), (i); (3) prophase: (b), (c), (d); (4) telophase: (a), (g). 12. Questions and Problems, 2.12 A Drosophila sperm cell contains four chromosomes. How many chromosomes would be present in a spermatogonial cell about to enter meiosis? How many chromatids would be present in a spermatogonial cell at metaphase I of meiosis? How many would be present at metaphase II? Ans: There are 8 chromosomes in a Drosophila spermatogonial cell about to enter meiosis. There are 16 chromatids in a Drosophilia spermatogonial cell at metaphase I of meiosis. There are 8 chromatids in a Drosophilia cell at metaphase II of meiosis. 15. Questions and Problems, 2.15 During meiosis, when does chromosome disjunction occur? When does chromatid disjunction occur? Ans: Chromosome disjunction occurs during anaphase I. Chromatid disjunction occurs during anaphase II....
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This note was uploaded on 01/26/2011 for the course BIOLOGY 4003 taught by Professor Matthews during the Spring '10 term at Minnesota.
- Spring '10