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  4. Duchenne muscular dystrophy, a sex-linked inheritance, is characterized by

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Q. Duchenne muscular dystrophy, a sex-linked inheritance, is characterized by

AMUAMU 1999

Solution:

: Duchenne muscular dystrophy is a X-linked recessive disorder caused by diffective dystrophin gene. In this disease there is a progressive weakness of all the skeletal muscles of the body leading to respiratory failure. The affected child usually dies at the age of 15 years.