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11 February, 21:14

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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  1. 12 February, 01:02
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    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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