Select the incorrect statement with respect to acquired immunity.
Anamnestic response is elicited on subsequent encounters with the same pathogen.
Anamnestic response is due to memory of first encounter.
Acquired immunity is non-specific type of defense present at the time of birth.
Primary response is produced when our body encounters a pathogen for the first time.
Lacking of $B$-cells and $T$-cells is known as
Write a note on lymphoid organs.
Which of the following is an autoimmune disorder?
Some people who have suffered from a disease may not be affected again during their life time; such immunity is called
Myasthenia gravis is due to