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4 September, 22:27

If grey fur is dominant to white fur in a rabbit population, how many possible phenotypes will there be in the offspring of a cross between two heterozygous parents

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  1. 4 September, 22:55
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    Allele for gray fur is A (dominant)

    Allele for white fur is a (recessive)

    Genotype of heterozygous is Aa (heterozygous is gray, because its allele is dominant)

    If we cross two heterozygous

    Parents: Aa x Aa

    F1: AA Aa Aa aa

    The ratio between phenotypes is 3:1 (gray:white)

    AA Aa Aa are with gray fur

    aa is with white fur
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