Memory cells are

Memory cell is originate from -

Assertion : Some diseases that attack in childhood do not attack again. Reason : Memory cells play an important role.

Assertion : Some diseases that attack in childhood do not attack again. Reason : Memory cells play an important role.

Life of the memory cells of immune system is

Life of the memory cells of immune system is

Assertion : Active immunity is acquired through the use of a person's immune responses, which lead to the development of memory cells. Reason : Active immunity results from an infection or an immunization.

What are memory T-cells (Tm) ?

[A]: B-cells are responsible for antibody mediated immunity which directly recognize an antigen and give rise to antibody secreting plasma cells and memory cells. [R]: Immunity can be induced by using vaccines for long- lived active period.

[A]: B-cells are responsible for antibody mediated immunity which directly recognize an antigen and give rise to antibody secreting plasma cells and memory cells. [R]: Immunity can be induced by using vaccines for long lived active period.