Week1_Problems

Week1_Problems - Week 1 Problems 1 In Arabidopsis a...

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Week 1 Problems 1. In Arabidopsis, a mutation in a gene responsible for stem elongation results in dwarf plants. The wild-type allele is responsible for the normal tall phenotype. a) Based on the information in the above table, which allele is dominant, the wild-type allele or the mutant allele? b) In cross III, what are the genotypes of the two parents? Use T and t for the dominant and recessive alleles respectively? c) In cross IV, what are the parental genotypes? d) A new cross is done (cross V). What are the genotypes of these parents? e) Which cross would be considered a test cross? 2. In arabidopsis, a mutation has been isolated that results in late flowering plants, compared to the wild-type early flowering. A separate mutation results in curled leaves as compared to the wild-type straight leaves. Answer the following questions based on the results given in the table below: a) Is the wild type or mutant allele dominant with respect to flowering time?
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