Multiple Choice
Severe combined immunodeficiencies (SCIDs) are due to _______.
A) autoantibodies
B) delayed hypersensitivity
C) congenital absence or immaturity of the thymus gland
D) a genetic defect in the development of both T cells and B cells
E) failure of B-cell development and maturity
Correct Answer:

Verified
Correct Answer:
Verified
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