Question

A white fruit colour of summer squash plant of genotype WwYy is crossed with plant having genotype wwyy then

Answer 1

However, if a dominant copy of the W gene is present in the homozygous or heterozygous form, the summer squash will produce white fruit regardless of the Y alleles. A cross between white heterozygotes for both genes (WwYy × WwYy) would produce offspring with a phenotypic ratio of 12 white:3. yellow:1 green.