Question 69

(Multiple Choice)

White fruit color in summer squash is influenced by a dominant allele W,whereas colored fruit must be ww.In the presence of ww,a dominant gene G results in yellow fruit,and homozygous gg results in green fruit.The F2 phenotypic ratios resulting from a cross of a true-breeding plant with white fruit (genotype WW GG)with a plant with green fruit will result in which phenotypic ratios?  


A) 8/16 white, 4/16 yellow, 4/16 green
B) 12/16 white, 3/16 yellow, 1/16 green
C) 4/16 white, 8/16 yellow, 4/16 green
D) 12/16 white, 2/16 yellow, 2/16 green
E) 8/16 white, 8/16 green

Answer