Biology Forums - Study Force

In cultivated stocks, the cross of a variety of white flower plants produced all red flowers in the F1
  generation, but the F2 generation produced 87 red flowers, 31 cream flowers, and 39 white flowers.
  Explain these results by giving the genotypes possible for each phenotype. What will be an ideal response?
 
 

Question 2

White fruit color in summer squash is influenced by a dominant allele W, while 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?
 

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