Q. Human IgM
A. is largely restricted to the circulation
B. is the antibody produced by high affinity plasma cells
C. protects mucosal surfaces
D. crosses the placenta
Answer: is largely restricted to the circulation
A. is largely restricted to the circulation
B. is the antibody produced by high affinity plasma cells
C. protects mucosal surfaces
D. crosses the placenta
Answer: is largely restricted to the circulation