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OpenStudy (anonymous):
Please help! So confused. :( 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?
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OpenStudy (anonymous):
i thiink the answer would be not positive tho AB and BO AB and OO AO and AB AO and BO
OpenStudy (anonymous):
A. AO and BO B. AB and OO C. AB and BO D. AO and AB
OpenStudy (anonymous):
i used this as a reference http://www.hobart.k12.in.us/jkousen/Biology/multalle.htm
OpenStudy (anonymous):
what do you mean not positive?
OpenStudy (anonymous):
and oh okay, im gonna go to it
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