Question

Development of a secondary immune response is based on populations of ______.

विकल्प

• memory cells

• effector cytotoxic T-cells

• mast cells

• effector B-cells

Answer 1

Development of a secondary immune response is based on populations of memory cells.

Explanation:

The development of a secondary immune response is based on populations of memory cells, which remain in lymphoid tissues after the primary immune response. These memory cells can recognize a previously encountered antigen and rapidly proliferate into effector cells upon subsequent exposure, leading to a faster and stronger immune reaction. Effector cytotoxic T-cells, mast cells, and effector B-cells are involved in immediate immune responses but do not primarily account for the long-lasting and enhanced response seen in secondary immunity.