Predict the phenotypic ratio of the F₂ progeny of a cross between two colorless plants, one homozygous for A and the other homozygous for B. A)3 colored : 1 colorless B)9 colored : 7 colorless C)9 colorless : 7 colored D)15 colorless : 1 colored E)15 colored : 1 colorless

Question

Quizplus · Accepted Answer

The phenotypic ratio of 9 colored: 7 colorless suggests a complementary gene interaction, where two genes are involved in determining the phenotype. In this case, both genes A and B are necessary for the color to be expressed, and the presence of at least one dominant allele of each gene results in a colored phenotype.

Predict the Phenotypic Ratio of the F2 Progeny of a Cross

Predict the Phenotypic Ratio of the F₂ Progeny of a Cross