Each ________ fragment of an antibody molecule contains the variable regions of a heavy and light chain that folds into a groove for one epitope.

Question

Quizplus · Accepted Answer

The Fab fragment of an antibody molecule contains the variable regions of a heavy and light chain that folds into a groove for one epitope. The variable regions are responsible for binding to specific antigens, making the Fab fragment important for antigen recognition in various applications, such as diagnostics and therapeutics. The Fc fragment, on the other hand, mediates effector functions such as phagocytosis and complement activation, but does not contribute to antigen recognition. Therefore, choice B, Fab, is the best choice to complete the sentence.

Each ________ Fragment of an Antibody Molecule Contains the Variable