Rheumatoid factors are immunoglobulins with specificity for allotypic determinations located on the:
a. Fc fragment of IgG
b. Fab fragment of IgG
c. J chain of IgM
d. secretory component of IgM
Answer: A
Rheumatoid factors are immunoglobulins with specificity for allotypic determinations located on the:
a. Fc fragment of IgG
b. Fab fragment of IgG
c. J chain of IgM
d. secretory component of IgM
Answer: A