A) A reduction in haemoglobin content of blood
B) A reduction in stem cell production
C) Loss of antibody mediated immunity
D) Loss cell mediated immunity
Correct Answer: D
Solution :
At the time of birth, Thymus is a prominent atrophics. This gland secretes thymosin hormone, thymic humoral factor, thymic factor and thymopoietin. Proliferation of lymphocytes and differentiation of these lymphocytes and differentiation of these lymphocytes into a variety of clones are induced by these factors. These clones are differentially specialized to destroy different specific category of antigens and pathogens. Thus thymus gland brings T-lymphocytes for cell mediated immunity.
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