PATHOLOGY MCQ
GENETICS AND DISEASE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A woman with heterozygous type A blood (IAi) marries a man with type AB blood (IAIB). Their children could have which of the following blood types? Select all that apply. Show your punnett square on you paper. (3B3)
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Type A
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Type B
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Type AB
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Type O
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Explanation:
Detailed explanation-1: -Usually, an AB parent and an A parent can only have children who are Type A or Type B. One exception is in certain Asian groups. Some of these folks have a rare version of the ABO blood type gene called cis-AB. People with this gene version have an AB blood type but can easily have an O child.
Detailed explanation-2: -A cross between a heterozygous individual with blood group A and a woman with blood group AB produces offspring with blood groups A, AB and B.
Detailed explanation-3: -If in a couple, the man has type AB blood and the woman has type A blood, their children could have type A, AB or B blood types.
There is 1 question to complete.