Immunology in Biotechnology MCQ Questions & Answers | Biotechnology

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

Heat inactivation of serum is done to inactivate

Match the cells in Group I with their corresponding entries in Group II.

Group I	Group II
P. Mast cells	1. Activation of the complement pathway
Q. Natural killer cells	2. Expression of CD56
R. Neutrophils	3. Contains azurophilic granules
S. Dendritic cells	4. Defense against helminthic infection
	5. Production of antibodies specific to bacteria
	6. Contains long membranous projections

The first humanized monoclonal antibody approved for the treatment of breast cancer is