Question

How many types of acquired immune responses found in humans?

• A. One
• B. Two
• C. Five
• D. Four

Answer 1

The correct option is B Two

The acquired immune response occurs in response to either a foreign antigen or a self-cell that has gone haywire. It mainly involves two types of cells or lymphocytes, the B lymphocytes and the T lymphocytes. Both B and T lymphocytes are involved in the primary and secondary immune responses of an individual. The cells are naïve in the first or the primary encounter and react as mature lymphocytes during subsequent encounters.

So, the correct answer is 'Two'.