Biology : PU-CET (U.G) 2018 Panjab University Entrance Exam With Answers

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49.

Which of the following is not true about antibody structure ?

A: Antibodies have multiple identical antigen binding sites
B: Antibodies are built from equal numbers of large and small peptide chains.
C: Antibodies are secreted and function away from the cell. They are not attached to the cell membrane.
D: The class of the antibody molecule is determined solely by its heavy chain.

The answer is: C

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