Question

Which one of the combinations of the following statements is true about antibody structure?
P. Limited proteolysis of rabbit IgG with the enzyme pepsin generates two antigen-binding
regions (Fab) and an Fc fragment
Q. Limited proteolysis of rabbit IgG with the enzyme papain generates a single bivalent
antigen-binding region F(ab)2 and peptide fragments
R. The Fc fragment of IgG can self-associate and crystallize into a lattice
S. The F(ab)2 fragment of IgG is composed of both light and heavy chains
(A) P and Q only (B) P and R only
(C) R and S only (D) Q and S only

Answer 1

your answer could be a that is P and Q only is the most suitable Ones I feel