B. Determine how many genes are "mutated" in the different mutants below. Indicate which mutants are alleles of each gene. Give any dominance relationships that can be determined if multiple alleles are present for any locus. apricot white-1 white-2 purple brown-1 brown-2 apricot apricot apricot wildtype purple brown wildtype white-1 white wildtype purple brown wildtype white-2 white wildtype wildtype brown purple purple purple wildtype brown-1 brown wildtype brown-2 brown
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We have the following phenotypes and their corresponding alleles: - apricot (a) - white-1 (w1) - white-2 (w2) - purple (p) - brown (b) - wildtype (wt) Step 2: Analyze the cross results to determine the number of genes and alleles involved. We can analyze the Show more…
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Of the mutant lines you have isolated, you now want to identify how many different genes contribute to red color formation. You spend an entire summer generating true-breeding lines for each of the red pigment mutants you isolated. You cross each mutant to a wildtype plant; each of these crosses results in F1 progeny that are all wildtype for the red color. What does this tell you about your mutant lines? None of the above The mutants are alleles of the same gene Each mutant is dominant to wildtype The mutants are alleles of different genes Each mutant is recessive to wildtype
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3. What is the maximum number of genes that could control hat color preference in wildtype holiday elves? A. One B. Two C. Three D. Four E. Can't tell 4. Which of these is the genotype for Mutant 5? A. AAb2b2d2d2EE B. a2a2BBDDEE C. AA b2b2DDe2e2 D. a2a2BBDDe2e2 E. AABBd1d1EE 5. Given the results in the table, what is your best hypothesis from the options about the ratio of green to red in the F2 from a mating of F1 kids from the cross of Mutant 3 to Mutant 6? A. 6:10 B. 3:1 C. 13:3 D. 1:3 E. 0:4 6. Assuming that all genes found function in parallel pathways, and that all alleles found are independent knockout mutants, what is your best hypothesis about the ratio of red to green in the F2 from a mating of F1 kids from the cross of Mutant 2 to Mutant 3? A. 0:4 B. 1:3 C. 3:1 D. 9:7 E. 7:9
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What is the maximum number of genes that could control hat color preference in wildtype holiday elves? A. One B. Two C. Three D. Four E. Can't tell Which of these is the genotype for Mutant 5? A. AAb2b2d2d2EE B. a2a2BBDDEE C. AA b2b2DDe2e2 D. a2a2BBDDe2e2 E. AABBd1d1EE Given the results in the table, what is your best hypothesis from the options about the ratio of green to red in the F2 from a mating of F1 kids from the cross of Mutant 3 to Mutant 6? A. 6:10 B. 3:1 C. 13:3 D. 1:3 E. 0:4 Assuming that all genes found function in parallel pathways, and that all alleles found are independent knockout mutants, what is your best hypothesis about the ratio of red to green in the F2 from a mating of F1 kids from the cross of Mutant 2 to Mutant 3? A. 0:4 B. 1:3 C. 3:1 D. 9:7 E. 7:9
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