Match each of the descriptions in questions 1-5 with the correct lettered antibody isotype (A-E). (Answers may be used more than once.)

A. IgA
B. IgD
C. IgE
D. IgG
E. IgM

The secreted form of this isotype forms pentamers around a J chain


ANS: E.  IgM is secreted as a J chain-linked pentamer.

Health & Biomechanics

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