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31-05-2019
Biology

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Blood type in humans is an example of a trait that has multiple alleles. The alleles for type A blood and type B blood are codominant, and type O blood is recessive to both type A and type B. If a girl with type AB blood has a brother with type O blood and a sister with type B blood, which of the following genotypes could it be possible for their parents to have?

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31-05-2019

Answer:

Iᴬi and Iᴮi (Type A and type B)

Explanation:

Make a punnet square. Since offspring gets one allele from each parent, use that to solve.

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