Select the correct statement

1. Cells in a malignant tumor do not show contact inhibition

2. Computed tomography scans use non-ionising radiations to study cancer of internal organs.

3. AIDS is a retroviral disease caused by unenveloped HIV.

4. Treatment of AIDS with antiretroviral drugs is completely effective and always prevents death.

Which of the following statement is not correct regarding malarial infection?

1. Plasmodium enters the human body as sporozoites through the bite of freshly moulted female Anopheles mosquito

2. High fever recurring every three to four days

3. Sporozoites initially multiple within the liver cells and then attack the RBCs resulting in their rupture.

4. When a female Anopheles mosquito bites an infected person, these parasites enter the mosquito's body and undergo further development.

Out of the following diseases which are caused due to bacterial infection?

a. Typhoid

b. Elephantiasis

c. Cholera

d. Tuberculosis

1. a & b only

2. b & c only

3. a, c & d only

4. a, b, c & d

Internal bleeding, muscular pain, fever, anaemia and blockage of the intestinal passage are the common symptoms of

1. Amoebiasis

2. Elephantiasis

3. Ascariasis

4. Typhoid

Which of the following is very effective sedative and
pain killer?
1. Cocaine.
2. Heroin.
3. Morphine.
4. Cannabis extract

Cellular oncogenes can be best explained as

1. Mutated gene.
2. Present in normal cells.
3. Present only in the cells of benign tumour.
4. Genes due to which cells loose the property of
contact inhibition.

___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.