Ralnh has type B blood and his wife Rachel has type A blood. They are very shocked to hear that their baby has type O blood, and think that a switch might have been made at the hospital. Can this baby be theirs? O A. Yes, if both parents are homozygous recessive O B. Yes, if Ralph is homozygous and Rachel is heterozygous O C. No, this baby is not theirs. D. Yes, if both parents are heterozygous for their blood types

Human Biology (MindTap Course List)
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Chapter19: Introduction To Genetics
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Ralnh has type B blood and his wife Rachel has type A blood. They are very shocked to hear that their baby has type O blood, and think that a switch might
have been made at the hospital. Can this baby be theirs?
O A. Yes, if both parents are homozygous recessive
O B. Yes, if Ralph is homozygous and Rachel is heterozygous
O C. No, this baby is not theirs.
D. Yes, if both parents are heterozygous for their blood types
Transcribed Image Text:Ralnh has type B blood and his wife Rachel has type A blood. They are very shocked to hear that their baby has type O blood, and think that a switch might have been made at the hospital. Can this baby be theirs? O A. Yes, if both parents are homozygous recessive O B. Yes, if Ralph is homozygous and Rachel is heterozygous O C. No, this baby is not theirs. D. Yes, if both parents are heterozygous for their blood types
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