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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?

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namordu

Answer:

1/4

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.

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