Question

Segments of antigen that are recognised by antibody are

• A. Memory regions
• B. Epitopes
• C. Nondeterminants
• D. Self limitation

Answer 1

Answer: (B)

Epitopes

An epitope, also known as the antigenic determinant is the part of an antigen that is recognized by the immune system, specifically by antibodies, B cells, or T cells. The part of an antibody that binds to the epitope is called a paratope. Epitopes are usually non-self proteins. The epitopes of protein antigens are divided into two categories i.e., conformational epitopes and linear epitopes, based on their structure and interaction with the paratope.

So, the correct answer is 'Epitopes'.