142.DIGEORGE SYNDROME

A.B-CELL DEFECT

B.T-CELL DEFECT

C.PRE B CELL DEFECT

D.COMPLEMENT DEFECT

ANS:T CELL DEFECT

T-cells, which originate in the bone marrow, are responsible for fighting off viruses and fungi. A lack of T-cells can lead to frequent infections. One PI disease caused by a T-cell deficiency is DiGeorge syndrome, a disorder that begins during fetal development and can affect various parts of the body, including the head, neck, face, parts of the brain, heart, and thymus. Symptoms of DiGeorge syndrome can be mild to severe, and treatments will vary depending on whether the immune defect is partial or complete.