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.
Antibodies are produced by
Which one of the following statements is correct?
Lacking of $B$-cells and $T$-cells is known as
What plays an important role in primary and secondary response?
Which of the following is a pentameric immunoglobulin and is produced first in a primary response to an antigen?