If IgM is pentamerous and the weight of antibody is around 1500000 Da. It is provided that the weight of the heavy chain of the antibody is twice that of the light chain. Then find the approximate weight of dimeric antibody IgA.

1.    More than 590kDa

2.    550kDa

3.   300kDa

4.   30kDa

If 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 the placenta come under which class of immunity?

1.    Natural

2.    Passive

3.   Active

4.   More than one option

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

1.    Active

2.    Passive

3.   Both depending on the pathogen

4.   Generally active sometimes passive

RDT has not allowed producing an antigenic polypeptide of the pathogen in

1.    Bacteria

2..    Yeast

3.    Virus 

4.   Both 1 and 2

Allergies could be because of

1.    Protected environment provided in early life

2.    Modern day lifestyle

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 2 and 3

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

The formation of effector lymphocytes will occur in

1.    Bone marrow

2.    Thymus

3.   Appendix

4.   Thyroid