___A___ and ___B___ provide micro-environments for
the development and maturation of T-lymphocytes. Here
A and B is :-
1. Spleen and thymus gland.
2. Thymus gland and MALT.
3. Bone marrow and thymus gland.
4. Spleen and MALT.

Recombinant DNA technology has allowed the
production of __A__ of pathogen in bacteria or yeast.
Here A is:-
1. Pro-toxin.
2. Anti-bodies.
3. Antigenic polypeptide.
4. Antigenic polysaccharide.

Vaccines are available for the disease like
I. Polio.
II. Diptheria.
III. Pneumonia.
IV. Tetanus.

1. I, II, III & IV 

2. I and IV only

3. I only 

4. I, II & IV only

Odd one out ?
1. PMNL - neutrophils
2. Monocytes.
3. Natural killer cells.
4. Interferons.

Select correct sequence about life cycle of Plasmodium:

1. Sporozoites (human)$\to$RBCs$\to$Liver cells$\to$Gametocytes in blood$\to$Blood meal (female mosquito)$\to$Multiply (female mosquito)$\to$Sporozoites (female mosquito)

2. Sporozoiters (human)$\to$Liver cells$\to$RBCs$\to$Gametocytes in blood$\to$Blood meal (female mosquito)$\to$multiply (female mosquito)$\to$Sporozoites (female mosquito)

3. Gametocytes (female mosquito)$\to$Gametocytes (human)$\to$RBCs$\to$Multiply$\to$Sporozoites$\to$Blood meal (human)$\to$Sporozoites (female mosquito)$\to$Multiply (female mosquito)$\to$Gametocytes (female mosquito)

4. Sporozoites (human)$\to$Liver cells$\to$Gametocytes in blood$\to$RBCs$\to$Blood meal(female mosquito)$\to$Multiply (female mosquito)$\to$Sporozoites (female mosquito)

When a quick immune response is required, we can

1. Directly inject weakened pathogen at time of emergency.

2. Directly inject preformed antigens.

3. Directly inject preformed antibodies.

4. Directly inject immunosuppressants.

Elephantiasis in man is caused by

1. Ancylostoma duodenale

2. Ascaris lumbricoides

3. Dracunculus medinensis

4. Wuchereria bancrofti

Salmonella typhi causes:

1. An acute infection of intestine that causes high fever and weakness

2. Enlargement of spleen and pain in stomach

3. Rose coloured rashes on the body

4. All of the above

Read the following statements about cancer and mark the incorrect ones

Choose the correct option regarding the drug, its source, and its effect on the body