Question

Read the following statements and select the correct option.
(A) Thymosins plays a major role in differentiation of T lymphocyte which provides cell-mediated immunity.
(B) Thymosins promote the production of antibodies to provide humoral immunity.

• A. Both (A) and (B) are true
• B. (A) is false but (B) is true
• C. Both (A) and (B) are false
• D. (A) is true but (B) is false

Answer 1

The correct option is A Both (A) and (B) are true

Cell mediated immunity involves the B cells and antibodies produced by these cells. Humoral immunity involves the T-lymphocytes. Thymosin is a lymphocytopoietic factor. It is produced by the thymus gland. It provides both cell mediated as well as humoral immunity in the human body. It promotes the production of antibodies for cell-mediated immunity. It stimulates polyclonal antibody synthesis in the peripheral blood. It also plays a major role in the differentiation of T-lymphocytes for humoral immunity. It stimulates the production of T-lymphocytes.

Thus, the correct answer is 'Both (A) and (B) are true.'