homework 2 key

homework 2 key - Bio 340 General Genetics Homework # 2...

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Bio 340 Homework # 2 Due Fri, Sep. 5, 3 pm General Genetics Fall, 2008 1) In your own words, describe what Mendel’s Law of Segregation means. Do not use the word segregation in your answer. (20 pts) Each parent passes one allele per locus onto each gamete (10 pts) and each allele has an equal chance of being passed (10 pts) . 2) A cross is made between a pea plant with constricted pods (a recessive trait, smooth is dominant) and is heterozygous yellow to a plant that is heterozygous for both genes. Construct the Punnett square for this cross. Diagram the cross. Use proper symbols. What are the predicted genotypes and phenotypes of the progeny? (20 pts) cG cg C G CcGG CcGg Cg CcGg Ccgg cG ccGG ccGg cg ccgg ccgg (5 pts) P: ccGg x CcGg F1: (1/8) CcGG, (2/8) CcGg, (1/8) Ccgg, (1/8) ccGG, (2/8) ccGg, (1/8) ccgg 3 constricted yellow, 3 smooth yellow, 1 constricted green, 1 smooth green (5 pts for the cross, 5 pts for the predicted genotypes, 5 pts for the predicted phenotypes)
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This note was uploaded on 09/26/2008 for the course BIO 340 taught by Professor Pratt during the Spring '08 term at ASU.

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homework 2 key - Bio 340 General Genetics Homework # 2...

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