Question

In Andalusian fowl black (B) is incompletely dominant over white (b). Heterozygotes are blue. What offspring will a blue fowl have if bred to birds of the following plumage? a. black b. blue c. white

Answer 1

The offspring will a blue fowl have if bred to birds of the following plumage; blue, black and white.
* Write legend:
o B – black
o b – whie
* Incomplete dominance: All heterozygous will be cross color – blue
o Bb – blue
*Blue x black
o Bb x BB
o F1: 1:1 Black: blue (secondary to incomplete dominance)
*Bb x Bb
o 1:1
*Bb x bb
o 1:1 blue and white