Question #6423424Single Choice

Biology

Question

In corn, the genes for kernel color and kernel texture are inherited independently. The gene for yellow kernels (Y) is dominant over green kernels (y), and the gene for smooth texture (S) is dominant over rough texture (s). A heterozygous yellow, smooth corn plant (Yy Ss) is crossed with a yellow, rough corn plant (Yy ss). What is the expected phenotypic ratio of their offspring?

Options

A
    9 yellow, smooth : 3 yellow, rough : 3 green, smooth : 1 green, rough
B
    9 yellow, smooth : 7 yellow, rough : 1 green, smooth : 1 green, rough
C
    3 yellow, smooth : 3 yellow, rough : 1 green, smooth : 1 green, rough
D
    6 yellow, smooth : 2 yellow, rough : 2 green, smooth : 2 green, rough

Answer & Analysis

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