Week 2 Handout - mapping without answers

Week 2 Handout - mapping without answers - Question 1...

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Question 1 Learning objective: • Understand how the coupling and repulsion phase can result in different progeny classes. • Be able to draw the most accurate genetic map using the available data. • Understand why the observed frequency of genetic recombination can be lower than expected. • Calculate interference and understand why there is often less recombination than expected. You are studying three linked genes in an organism. In each experiment you test cross each female to a male that is fully homozygous recessive (a/a, b/b and c/c). Data for the following experiments are explored in the questions below. Experiment 1 and 2: Two females (1 and 2) have the same genotype , heterozygous for both A and B genes but homozygous wild type for C (A/a, B/b, C/C). This is a two point cross between the A and B loci. Experiment 3: Female 3 has the genotype (A/a, B/B, C/c). This is a two point cross between the A and C loci.
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This note was uploaded on 07/17/2011 for the course BIO 151 taught by Professor Grinblat during the Summer '08 term at Wisconsin.

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Week 2 Handout - mapping without answers - Question 1...

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