The immature lymphocytes differentiates into antigen sensitive lymphocytes in

1. Bone marrow

2. Thymus

3. Both A and B

4. Spleen

The site of interaction of lymphocyte with antigen is

1. Bone Marrow

2. Thymus

3. Both A and B

4. Lymph nodes

Thymus is not

1. Lobed organ

2. Bean shaped

3. Located near heart

4. Beneath the breastbone

Which of the following acts as a filter of blood?

1. Bone marrow

2. Lymph node

3. Spleen

4. Thymus

Spleen is not

1. Large reservoir of erythrocytes

2. Mainly contains lymphocytes and phagocytes

3. Bean shaped

4. Lobed organ

Which of the following is an antigen trap of tissue fluid?

1. Spleen

2. Thymus

3. Lymph nodes

4. Appendix

MALT is not/ doesn't/ haven't

1. Lining of respiratory, digestive and urogenital tracts are the major location

2. Mucosa Associated Lymphoid Tissue

3. Constitutes more than 50% of Lymphoid Tissue in the body

4. Lymphoid Tissue

AIDS, a deadly disease, what does the word Acquired indicate here?

1. It is because of Acquired immunity

2. It is because of deficiency of immune system

3. It is because of immuno deficiency

4. It is not a congenital disease

HIV is not/doesn't/hasn't

1. Retrovirus

2. an envelope

3. RNA genome which is naked

4. Envelope which is a protein coat

Transmission of HIV doesn't occur by which of the following?

1. Sexual contact with infected person

2. From infected mother to her child through placenta

3. Transfusion of blood among people

4. Intravenous drug abusers may share syringes with infected needles