IMMUNOLOGY

IMMUNE RESPONSE

CLASSICAL ALTERNATE AND LECTIN PATHWAYS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is clonal selection?
A
Production of memory B cells
B
Production of a group of identical organisms
C
Passive immunity as a result of inoculation withantibodies
D
Mitotic division of B cells activated in response toan infection
Explanation: 

Detailed explanation-1: -Definition. The proliferation of B-lymphocytes and T-lymphocytes activated by clonal selection in order to produce a clone of identical cells. This enables the body to have sufficient numbers of antigen-specific lymphocytes to mount an effective immune response.

Detailed explanation-2: -The clonal selection theory proposes that antigen selects lymphocytes for activation from a population of cells precommitted to produce specific antibody. Implicit in this theory is that antibody-forming cells are monospecific and express cell-surface receptors capable of binding foreign antigens.

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