Multiple Choice
Mom and Dad both have type A blood. Their first child has type O blood. What does this tell us about Mom and Dad?
A) One of them must have an O gene.
B) Both of them must have an O gene.
C) One of them must be heterozygous type A.
D) Both of them must be homozygous type A.
Correct Answer:
Verified
Correct Answer:
Verified
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