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26 August, 23:24

Blood type in humans is an example of 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?

AO and BO

AB and OO

AB and BO

AO and AB

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Answers (1)
  1. 26 August, 23:41
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    Its AO and BO i am 65 percnt sure on this u should research
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