Two true-breeding pea plants are crossed. One parent is round, terminal, violet, constricted, while the other expresses the con- trasting phenotypes of wrinkled, axial, white, full. The four pairs of contrasting traits are controlled by four genes, each located on a separate chromosome. In the F1 generation, only round, axial, violet, and full are expressed. In the F2 generation, all possible combinations of these traits are expressed in ratios consistent with Mendelian inheritance.(a) What conclusion can you draw about the inheritance of these traits based on the F1 results?(b) Which phenotype appears most frequently in the F2 results? Write a mathematical expression that predicts the frequency of occurrence of this phenotype.(c) Which F2 phenotype is expected to occur least frequently? Write a mathematical expression that predicts this frequency.(d) How often is either P1 phenotype likely to occur in the F2 generation?(e) If the F1 plant is testcrossed, how many different pheno- types will be produced?
Two true-breeding pea plants are crossed. One parent is round, terminal, violet, constricted, while the other expresses the con- trasting
(a) What conclusion can you draw about the inheritance of these traits based on the F1 results?
(b) Which phenotype appears most frequently in the F2 results? Write a mathematical expression that predicts the frequency of occurrence of this phenotype.
(c) Which F2 phenotype is expected to occur least frequently? Write a mathematical expression that predicts this frequency.
(d) How often is either P1 phenotype likely to occur in the F2 generation?
(e) If the F1 plant is testcrossed, how many different pheno- types will be produced?
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