Awoman Whose Hemoglobin S Levels Are Less Than 1% Has

question 21

Multiple Choice

Awoman whose hemoglobin S levels are less than 1% has a brother with sickle cell disease, and both parents have been diagnosed as carriers for the disorder. She asks what her risks are of having a child with sickle cell disease. What is the best response?

• A)"Because you do not have the trait, you cannot have a child with sickle cell disease regardless of your partner's sickle cell status."
• B)"Because both your parents have the trait, it is possible for you to have a child with sickle cell disease if your partner actually has the disease."
• C)"Because your brother actually has sickle cell disease, the risk for your children having sickle cell disease is 50% with each pregnancy."
• D)"Because you are a woman, your daughters will each have a 50% risk for having the disease, and all of your sons will be carriers of the trait."

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