Quiz 2 - Answer Key

Quiz 2 - Answer Key - BILD 3 Fall 2008 Professor C. Wills...

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BILD 3 Fall 2008 Name: ___________________________ Professor C. Wills PID # : ___________________________ Section: Mon 9-9:50 AM ------------------------------------------------------------------------------------------------------------------------------------------------------- Page | 1 QUIZ 2 Answer Key 1. In a population of ground squirrels, the number of homozygous dominant individuals for a certain trait is 40, the number of heterozygotes is 30, and the number of homozygous recessive is 30. Find the allele frequencies, p and q, and determine whether or not this population is obeying the Hardy-Weinberg law. (Note : Use a 10% cutoff for deviation of actual values from expected values .) ( 4 pts ) Define alleles/genotypes A = dominant allele, a = recessive allele AA = homozygous dominant (40) Aa = heterozygote (30) Aa = homozygous recessive (30) p = f(A) = [2(40) + 30] / [100 (2)] = 0.55 q = f(a) = 1 f(A) = 1 p = 0.45 or q = f(a) = [2(30) + 30] / [100 (2)] = 0.45
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This note was uploaded on 10/16/2009 for the course BICD BILD 3 taught by Professor Wills during the Fall '08 term at UCSD.

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Quiz 2 - Answer Key - BILD 3 Fall 2008 Professor C. Wills...

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