Which immune system(s)are absent in individuals with severe combined immunodeficiency?
A) innate
B) cell-mediated
C) antibody-mediated
D) antibody-mediated and cell-mediated
E) inflammatory response

Question

Quizplus · Accepted Answer

Severe combined immunodeficiency (SCID) is a genetic disorder where both T cells (cell-mediated immunity) and B cells (antibody-mediated immunity) are absent or nonfunctional. Therefore, options C and E are ruled out as they only relate to one type of immunity. Option A is incorrect because innate immunity functions independently of adaptive immunity, and is not affected by SCID. Therefore, the best choice is D.

Which Immune System(s)are Absent in Individuals with Severe Combined Immunodeficiency