Question 1
Which is easier to establish in a pure-breeding population, a dominant or a recessive gene?
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.