Duchenne muscular dystrophy (MD)is inherited from an X-linked recessive allele. What is the probability that a son with Duchenne MD inherited this disease from his biological father?

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Quizplus · Accepted Answer

Duchenne muscular dystrophy is inherited in an X-linked recessive manner, meaning the defective gene is located on the X chromosome. Since males (XY) inherit their X chromosome from their mother and the Y chromosome from their father, a son cannot inherit the X-linked allele for Duchenne muscular dystrophy from his father.

Duchenne Muscular Dystrophy (MD)is Inherited from an X-Linked Recessive Allele