Hemophilias Are Generally Inherited in an X-Linked Pattern

question 10

Multiple Choice

Hemophilias are generally inherited in an X-linked pattern. How will this affect the offspring of a father with a normal gene and a carrier mother?

• A) All sons will be affected and 50% of daughters will be carriers
• B) No children will be affected but all will be carriers.
• C) A 25% chance of having a son who is affected and a 25% chance of having a daughter who is a carrier, and 50% chance that a child (either boy or girl) does not have the gene at all.
• D) 50% of sons are affected and all daughters are carriers.

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