When crossing chickens with blue plumage in their offspring, 8 chickens had blue feathers, 4 – black

When crossing chickens with blue plumage in their offspring, 8 chickens had blue feathers, 4 – black, and 3 chicks turned out to be white. determine the type of inheritance of this trait. what offspring should be expected from crossing black and blue chickens if the black gene is dominant?

In this problem, inheritance occurs according to the type of incomplete dominance. AA is black, Aa is blue, aa is white.

R: Aa x Aa – parents with blue plumage;

G: A, a x A, a – possible gametes;

F: AA – 25% black;

Aa – 50% blue;

aa – 25% white.

The resulting offspring ratios approximately correspond to those specified in the task (4: 8: 3).

R: AA (black) x Aa (blue);

G: A x A, a – possible gametes;

F: AA – 50% black;

Aa – 50% blue.