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 if the individual had both
recessive genes in the homozygous condition, it would be green. Give the F2 phenotypic ratios
resulting from a cross of a pure-breeding white of genotype WW GG with a green. What will be an ideal response?


12/16 W__ __ __ white, 3/16 ww G __ yellow, 1/16 ww gg green

Biology & Microbiology

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