Explore topic-wise MCQs in Biology.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

Antigens can be only of one specific nature.

A. True
B. False
Answer» C.
2.

Which of the following antibodies are present on the surface of B-lymphocytes?

A. IgA
B. IgE
C. IgD
D. IgM
Answer» D. IgM
3.

Which of the following is an Allergy Mediated antibody?

A. IgE
B. IgA
C. IgG
D. IgD
Answer» B. IgA
4.

In which of the following places antibody IgA is not present?

A. Vagina
B. Placenta
C. Digestive tract
D. Respiratory tract
Answer» C. Digestive tract
5.

Which of the following antibody is the first line of defence against inhaled and ingested pathogens?

A. IgM
B. IgA
C. IgG
D. IgE
Answer» C. IgG
6.

Which of the following is the smallest antibody?

A. IgG
B. IgA
C. IgD
D. IgE
Answer» B. IgA
7.

Which of the following antibodies constitute the largest proportion of the total antibodies present?

A. IgA
B. IgM
C. IgG
D. IgE
Answer» D. IgE
8.

Antigens are generally Antibody generating molecules.

A. True
B. False
Answer» B. False
9.

Which region of an antibody is also called as Variable Region ?

A. Fc region
B. Fab region
C. NN region
D. CC region
Answer» C. NN region
10.

What is the approximate weight of Heavy and Light chains respectively?

A. 50,000 Da and 25,000 Da
B. 25,000 Da and 50,000 Da
C. 75,000 Da and 25,000 Da
D. 75,000 Da and 50,000 Da
Answer» B. 25,000 Da and 50,000 Da
11.

Which region of an antibody is also called a Fragment of Crystallization ?

A. Fc region
B. Fab region
C. CC region
D. NN region
Answer» B. Fab region