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vvll vvll
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6 years ago
Which disorder requires only one parent to carry an abnormal gene?
 
  a. Sickle cell anemia c. Hemophilia
  b. Cystic fibrosis d. Tay-Sachs disease
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jimjimsjimjims
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6 years ago
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vvll Author
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You make an excellent tutor!
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