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28 March, 20:31

A person that is heterozygous type AB (AB) marries a person that is heterozygous type A (AO). What is the probability that their potential offspring will be type A?

A. 0%

B. 25%

C. 50%

D. 75%

E. 100%

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  1. 28 March, 20:39
    0
    The correct option is B. 25 %

    Explanation:

    A heterozygous type can be described as the type in which both the alleles of a gene are different. If both the alleles of a gene are similar in an organism, then the person is said to be homozygous for the trait.

    In the above question, two heterozygous parents are to be cross - bred to check the probability of them producing homozygous alleles (AA).

    A punnet square made will show the following results:

    A O

    A AA AO

    B BA BO

    Hence, there will be 25% chance that the offspring produced could be homozygous AA.
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