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16 April, 06:25

A cleft chin is a dominant trait one parent is heterozygous for cleft chin and the other parent does not have collection what is the probability that the offspring will have a cleft chin

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  1. 16 April, 06:50
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    50% or 0.5 is the probability that the offspring will have a cleft chin.

    Explanation:

    Data given:

    Cleft chin = dominant, genotype CC

    one parent, heterozygous so genotype, Cc

    other parent = no cleft chin, genotype is cc (recessive)

    probability of child with cleft chin = ?

    The cross between the given genotype will be shown in punnet square:

    C c

    c Cc cc

    c Cc cc

    The results obtained from the cross shows that 50% chances of the progeny having cleft chin.

    The phenotype ratio: cleft chin: no cleft chin

    1:1

    the genotype ratio of the progeny

    heterozygous dominant : recessive homozygous

    1:1
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