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Blood Group

An Antibody i...

Question

An Antibody is made of ................... polypeptide chains.

A

2

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B

4

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C

6

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D

8

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Solution

The correct option is B 4
An antibody is a large, Y-shaped protein produced by plasma cells that is used by the immune system to identify and neutralize pathogens. The immunoglobulin consists of four polypeptide chains, two identical heavy chains and two identical light chains connected by disulfide bonds.
Thus, the correct answer is option B.

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