HEREDITY
MULTIPLE ALLELES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Type A only
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Type O only
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Type A or Type O
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Type AO only
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Detailed explanation-1: -Note from the table that this mother could have created a child with type A blood with a father of any of the four possible blood types, typeA, type AB, type B, or type O. Likewise, the father of the child could be either Rh+ or Rh-.
Detailed explanation-2: -If one parent has A and another has O, they can either produce a child with A or O blood types.
Detailed explanation-3: -Even though both parents still have blood type A, Dad can pass on either his A or his O gene version. Mom can also either pass on her A or her O. Because of this, you can see that there’s 1 in 4 or 25% chance for a child to have OO, or blood type O.
Detailed explanation-4: -One parent with A and another with B will give their child either A, B, AB or O groups. One parent with A and another with AB will give their child either A, B or AB groups. One parent with A and another with O will give their child either A or O blood group.
Detailed explanation-5: -But it is technically possible for two O-type parents to have a child with A or B blood, and maybe even AB (although this is even more unlikely). In fact, a child can get almost any kind of blood type if you consider the rule-breaking exceptions.