Question

In the multiple-allele series that determines coat color in rabbits, c+ encodes agouti, cch encodes chinchilla, and ch encodes Himalayan. Dominance within this allelic series is c+> cch > ch. In a cross between c+/ch and cch/ch, what proportion of progeny will be chinchilla?

Answer 1

1/4

Step-by-step explanation:

Dominance within this multiple-allele series is c+ (agouti) > cch (chinchilla) > ch (himalayan).

A cross between c+/ch x cch/ch was done.

The possible genotypes of the offspring are:

• c+/cch: agouti
• c+/ch: agouti
• ch/cch: chinchilla
• ch/ch: himalayan

So 1/4 of the progeny will be chinchilla.