Which of the following drugs has a potent stimulating action of central nervous system?

1. Morphine

2. Cocaine

3. Barbiturate

4. Benzodiazepine

A cell:
I. Loses the property of contact inhibition
II. Shows uncontrolled proliferation
III. Invades the neighboring tissues

This cell is probably:

1. Mutated

2. Cancerous

3. Dedifferentiated

4. Apoptotic

The fetus receives some antibodies from their mother, through the placenta. This is an example of:

1.  Naturally acquired passive immunity

2.  Artificially acquired passive immunity

3.  Naturally acquired active immunity

4.  Artificially acquired active immunity

Select the option where all columns are correctly matched:

The mode of transmission for all the following human diseases is primarily by droplet infection except for:

1.  Pneumonia

2.  Diphtheria

3.  Influenza

4.  Polio

Odd one out?

1.  PMNL-neutrophils.

2.  Monocytes.

3.  Natural killer cells.

4.  Interferons.

Vaccines are available for the disease like

I.   Polio.

II.  Diphtheria.

III. Pneumonia.

IV. Tetanus.

1.  I, II, III & IV

2.  I and IV only

3.  I only

4.  I, II & IV only

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.

Which of the following is very effective sedative and pain killer?

1.  Cocaine.

2.  Heroin.

3.  Morphine.

4.  Cannabis extract.

Which of the following represents the form of Plasmodium that is released from the erythrocyte by lysis?

1. Trophozoite

2. Schizont

3. Merozoite

4. Macrogametocyte