IMMUNOLOGY

MISCELLENOUS

VACCINATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A polyclonal response to an infection occurs because most antigens have multiple ____
A
isotopes
B
isotypes
C
allotypes
D
idiotypes
E
epitopes
Explanation: 

Detailed explanation-1: -Because most antigens are complex structures with multiple epitopes, they result in the production of multiple antibodies in the lab animal. This so-called polyclonal antibody response is also typical of the response to infection by the human immune system.

Detailed explanation-2: -Each antigen typically has many epitopes. For example, insulin, a dimeric protein with 51 amino acids, has on its surface at least 115 antibody epitopes (Schroer et al. 1983). Nearly the entire surface of an antigen presents many overlapping domains that antibodies can discriminate as distinct epitopes (Benjamin et al.

Detailed explanation-3: -Polyclonal antibodies are a heterogeneous mix of antibodies, derived from the immune response of multiple B-cells, and each one recognizes a different epitope on the same antigen.

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