A Phenotypically Normal Woman Marries a Man with Wilson Disease,an

question 90

Multiple Choice

A phenotypically normal woman marries a man with Wilson disease,an autosomal recessive disorder.They have a son who has Wilson disease.If you need two copies of the recessive allele to be affected and the mother doesn't have the disease,how did the son get it?

• A) The woman had two recessive alleles.
• B) The woman must have been a carrier of one recessive allele and one normal allele.
• C) The woman had two dominant alleles.
• D) The man had two dominant alleles.
• E) The man had one dominant and one recessive allele.

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