Homework02 - BIS101-003/Engebrecht Homework02 Suggested...

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BIS101-003/Engebrecht Homework02 10/02/08 Suggested problems and homework for week #2 Problems suggested for the whole class – these are not to be turned in, but are for practice/study aid. The following problems can be done after the meiosis lecture: 8 th edition: Ch. 3: 5, 10, 19, 25, 40 9 th edition: Ch.2: 9, 14, 16 Ch. 3: 2, 46 The following problems are on gene interactions: Ch. 6 (both 8 th and 9 th edition): 10, 12, 16, 28, 31, 33, 35, 36, 39 101D assignment #2 (due beginning 10/9/08) is listed on the next page.
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1. (6pts) Consider a diploid yeast strain with the genotype HIS1/his1 ADE2/ade2 . Capital letters ( HIS1 and ADE2 ) indicate wild-type genes, whereas lowercase letters ( his1 and ade2 ) denote mutant alleles. HIS1 is located on chromosome V, a small chromosome while ADE2 maps to chromosome XV, a large chromosome. Drawn are chromosomes in Anaphase I (top) and Anaphase II (bottom). The longer chromosome represents XV, the shorter chromosome represents V. Complete the figure by 1) adding the correct allele designations on each sister chromatid and 2) use arrows to indicate the direction of chromosome movement.
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