The color of chickens is determined by gene B, such that BB-

Last updated: 7/9/2022

The color of chickens is determined by gene B, such that BB- black, Bb = gray, and bb = white. A second gene R controls comb shape, with dominant rose and recessive single comb. If a white single-combed chicken is mated with a gray chicken that is heterozygous for rose comb, what fraction of the offspring will be gray with rose comb? 1/4 1/16 1/8 9/16 3/8