Item 2 You’ve been studying the spotted homework bug — a pesky


Question Description:

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Item 2 You’ve been studying the spotted homework bug — a pesky little creature that appears to be a tailed relative of Xenophyes rhachilophus, the moss bug. You’ve discovered two new mutants, and you’ve been characterizing them genetically. The phenotype of the wild-type spotted homework bug is shown below. Part A – mutant 1 With reference to the genotype, the mutant allele is designate “mutant,” the wild-type allele is designated “+,” and a deletion of the gene is designated “Df.” The forward slash (/) separates alleles. Based on these results, how would you characterize the spotted homework bug mutant 1 allele? For parts A & B, assume that mutants 1 and 2 identify independent genes. ANSWER: 1) amorph 2) hypomorph 3) hypermorph 4) antimorph 5) neomorph Part B – mutant 2 With reference to the genotype, the mutant allele is designate “mutant,” the wild-type allele is designated “+,” and a deletion of the gene is designated “Df.” The forward slash (/) separates alleles. Based on these results, how would you characterize the spotted homework bug mutant 2 allele? ANSWER: 1) amorph 2) hypomorph 3) hypermorph 4) antimorph 5) neomorph Part C – mutant 1 x mutant 2If the mutations in mutant 1 and mutant 2 were alleles of the same gene, which of the pictures would most likely resemble the phenotype of mutant 1/mutant 2? ANSWER:If the mutations in mutant 1 and mutant 2 were alleles of the same gene, which of the pictures would most likely resemble the phenotype of mutant 1/mutant 2?

Answer

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