Multiple Choice
Which of the following statements concerning the structure of immunoglobulins is false?
A) The enzyme papain splits the antibody molecule at the hinge region to give three fragments (2 Fab + 1FC) .
B) The FC portion is responsible for complement fixation, monocyte binding, and placental transfer.
C) IgM participates in placental transfer.
D) The Fab portion is the region responsible for antigen binding.
Correct Answer:

Verified
Correct Answer:
Verified
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