The cause and the body system affected by ADA deficiency in humans.
A
ADA deficiency is caused due to the deficiency of adenosine deaminase enzyme
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B
It is caused due to deletion of DNA segments.
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C
It is caused due to duplication of DNA segments.
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D
Both A and B
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Solution
The correct option is D Both A and B ADA deficiency is also called as adenosine deaminase deficiency. It is an autosomal recessive metabolic disorder. It is caused by deficiency of adenosine deaminase enzyme. It is caused due to deletion of DNA segments that codes for adenosine deaminase enzyme. It results in the immunodeficiency. The immune response of an individual is hampered. It symptoms include pneumonia, chronic diarrhea, skin rashes.