In domesticated chickens, a dominant allele C is required for colored feathers, but a dominant allele I of an unlinked gene is an inhibitor of color that overrides the effects of C. White Leghorns CC II whereas White Wyandottes have genotype cc ii. Both breeds are white, but for different reasons. In the F2 generation of a cross between White Leghorns and White Wyandottes.
a) what is the phenotypic ratio of white: colored?
b) among F2 chickens that are white, what is the proportion of CcLi?