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

question 7

Multiple Choice

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?

• A)0
• B)1/4
• C)1/2
• D)1/8
• E)1/16

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Definitions:

Bland Diet

A diet consisting of foods that are soft, not very spicy, and low in dietary fiber meant to help improve digestion and relieve symptoms for certain medical conditions.

Colon Cleansed

The process of removing toxins and waste from the colon, often through the use of fluids.

Diarrhea

A condition characterized by frequent and watery bowel movements, often an indicator of digestive distress or infection.

Colonoscopy

A procedure used to determine the cause of diarrhea, constipation, bleeding, or lower abdominal pain by inserting a scope through the anus to provide direct visualization of the large intestine.