Immunology in Biotechnology MCQs

Reactions between antibodies and antigens that are detected by precipitate formation in an agar gel are referred as

Based on the heavy chain, which one of the following antibodies has multiple subtypes?

The role of an adjuvant is to

Endogenous antigens are presented on to the cell surface along with

Determine the correctness or otherwise of the following Assertion (A) and Reason (R). Assertion: An antigen recognized by one immunoglobulin subtype is not recognized by any other subtype. Reason: Immunoglobulin subtypes differ from each other both in the variable and in the constant regions.

Nude mice refers to

Which of the following statement(s) is/are CORRECT for antigen activated effector T cells? P. CD4+ cells make contact with macrophages and stimulate their microbicidal activity. Q. CD4+ cells make contact with B cells and stimulate them to differentiate into plasma cells. R. CD8+ cells make contact with B cells and stimulate them to differentiate into plasma cells. S. CD8+ cells make contact with virus infected cells and kill them.

Which one of the following mechanisms is used by human pathogens to evade host immune responses?

Dizygotic twins are connected to a single placenta during their embryonic development. These twins