In the structure of an antibody; which terminal has antigen binding site?

1. N

2. C

3. N terminal of heavy chain and C terminal of light chain

4. C terminal of heavy chain and N terminal of light chain

IgM is pentamerous and weight of heavy chain is 1000000 Da and that of light chain is approximately half of the heavy chain, then find the weight of IgM.

1. More than 1500kDa

2. 150kDa

3. 15 kDa

4. 300 kDa

If a person X contracts a disease successfully, which kind of immunity has he developed?

1. Active

2. Passive

3. Anamnestic

4. Humoral

Colostrum and immunity gained through placenta comes under which class of immunity?

1. Natural

2. Passive

3. Active

4. More than one option

When quick immune response is required, we administer which kind of immunization?

1. Active

2. Passive

3. Both depending on pathogen

4. Generally active sometimes passive

RDT has not allowed to produce antigenic polypeptide of pathogen in

1. Bacteria

2. Yeast

3.     Virus 

4.    Both A and B

Allergies could be because of

1. Protected environment provided in early life

2. Modern day life style

3. More sensitivity to the environment

4. All of these

The cause of autoimmunity can be

1. Physical appearance

2. Genetic reasons

3. Reasons, which are still under research

4. Both B and C

The primary lymphoid organs are

1. Bone marrow and thymus

2. Bone marrow and spleen

3. Spleen and thymus

4. All three

Which of the following is not a lymphoid organ?

1. Appendix

2. Thyroid

3. Peyer's patches

4. Tonsils