Quiz 6 2008

Quiz 6 2008 - Quiz 6 2008 You may use a calculator if you...

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Quiz 6 2008. You may use a calculator if you think it will help. 1. Often a test cross is performed to determine whether an individual with the dominant phenotype for a given gene is a homozygote (AA) or heterozygote (Aa). However, you could reasonably guess the genotype of the unknown if you know the genotypes of some of its relatives. One of the following pieces of information is sufficient to guess the individual’s genotype without a test cross. Which one? a. The individual’s father is AA and all of the individual’s 20 siblings have the dominant phenotype. *b. The individual’s mother had the recessive phenotype. c. The individual’s mother and father both have the dominant phenotype. 2. Mutation is not usually a very powerful evolutionary force by itself for all of the following reasons except one. Which one? a. Beneficial mutations are very rare. b. When a mutation occurs, the new allele is at very low frequency, and it can easily be lost by genetic drift. *c.
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Quiz 6 2008 - Quiz 6 2008 You may use a calculator if you...

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