homework 4 - BICD 100 Spring 2008 Page 1 of 3 S Brody ext...

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BICD 100 Page 1 of 3 S. Brody, ext. 42619 Spring 2008 4125 Muir Biology 1 HOMEWORK SET #4 (Covering lectures #11,12,13) Due Friday, April 29, 2008 ***PLEASE PUT YOUR NAME AND SECTION NUMBER IN INK OR TYPED ON TOP OF YOUR HOMEWORK SET*** 30 pts total FOR PROBLEMS 1-3, ASSUME HARDY-WEINBERG EQUILIBRIUM ( 8 pts total ) 1. An island population of 80 persons with frequencies of 0.8A and 0.2a receives 20 immigrants with frequencies of 0.3A and 0.7a. a) What is the frequency of heterozygotes in each population? ( 4 pts ) b) What is the frequency of heterozygotes after immigration, but before matings? ( 2 pts ) c) What is the frequency of heterozygotes in the next generation (F 1 ) after one generation of random intermarriage? ( 2 pts ) ***************************************************** ( 8 pts total ) 2. In man, the two genotypes D/D and D/d are Rh + and d/d is Rh . The frequency of Rh people in the population is about 16/100. a) What proportion of the children in a series of families in which one parent is Rh + and the other Rh would be expected to be Rh + ? ( 2 pts ) b)
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