YES: Each parent has 2 genes for blood type. It is not unusual for those to have an A and an O gene. If this is the case, 3/4 of their children would have type A and 1/4 of their children would be type O.
Answered 7/7/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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