NEET Biology question
The allele for pea comb () in chickens is completely dominant over the allele for single comb (). The alleles for black feather colour () and white feather colour () show incomplete dominance, so that individuals possess grey feathers. If chickens heterozygous for both pairs of genes are mated, what proportion of offspring are expected to be single-combed and grey-feathered?
Answer: (D)
Solution
Crossing the double heterozygote (): at the comb locus, gives single-combed () offspring with probability . At the feather-colour locus (incomplete dominance), gives grey-feathered (,
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account