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You Are a Genetic Counselor and Need to Meet with a Couple

Question 61

Multiple Choice

You are a Genetic Counselor and need to meet with a couple that recently had a baby boy that has hemophilia.As part of the conversation you explain the basic genetics of the condition and provide advice concerning the likelihood of having additional children with the disease.Which statement below is most accurate?


A) Hemophilia is a genetic disorder that is inherited on the Y chromosome.Because males have one Y chromosome,should you choose to have subsequent children,males and females have an equal chance of being afflicted with hemophilia.
B) Hemophilia is a genetic disorder that is inherited on the Y chromosome.Because males have one Y chromosome,should you choose to have subsequent children,only males would be afflicted with hemophilia.
C) Hemophilia is a genetic disorder that is inherited on the X chromosome.Because females have two X chromosomes,should you choose to have subsequent children,females are more likely to be afflicted with hemophilia than males.
D) Hemophilia is a genetic disorder that is inherited on the X chromosome.Because males only have one X chromosome,should you choose to have subsequent children,male children are more likely to be afflicted with hemophilia.

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