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Unformatted text preview: BIOLOGY 108 - PROBLEM SET NOTE: Adjust your decimal places so that they are appropriate for each part of each question. But be consistent for all the numbers that are being directly compared. Answers to problems MUST be handwritten by you. You may collaborate, but DO NOT COPY from each other. You are encouraged to tabulate your answers where possible, but make sure you show each step of your calculation and state any relevant assumptions . 1. A survey is made of 4 allozyme loci in a particular population. The alleles are labeled according to the mobility of their products in electrophoresis (from fast to slow). A sample of 250 individuals gave the following results: Locus Genotype A/A A/B B/B A/C B/C C/C A/D B/D Adh 18 107 125 - - - - - Mdh 10 70 120 11 35 4 - - Est-A 114 75 10 12 30 - 7 2 Pgm 250 - - - - - - - a) Calculate the gene frequencies at each gene locus. b) For each locus, what numbers of each genotype would be expected given Hardy- Weinberg ratios? c) Calculate the "% polymophic loci" and "average (expected) individual heterozygosity" from this sample. (Of course 4 loci are insufficient to give a reliable estimate). course 4 loci are insufficient to give a reliable estimate)....
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This note was uploaded on 10/28/2010 for the course BIOL 108 taught by Professor Nunney during the Spring '10 term at UC Riverside.
- Spring '10