Which of the following represents possible antibody conformations?
I. One l light chain, one k light chain, two g heavy chains
II. Two l light chains, one g heavy chain, one m heavy chain
III. Two k light chains, two m heavy chains

Question

Which of the following represents possible antibody conformations? 
I. One l light chain, one k light chain, two g heavy chains
II. Two l light chains, one g heavy chain, one m heavy chain
III. Two k light chains, two m heavy chains

Quizplus · Accepted Answer

An antibody must have either two l or two k chains, not one of each, and an antibody must have two matching heavy chains as well. Therefore, the third option of an IgM (two m heavy chains) with two k light chains is the only possible option of those listed for a potential antibody conformation.

Which of the Following Represents Possible Antibody Conformations