Which of the following is non-pathogenic bacteria of colon?

1. Escherichia coli

2. Balantidium coli

3. Entamoeba coli

4. Enterobius vermicularis

Which of the following is a component of cell mediated immunity?

1. B-cells

2. α-cells

3. T-cells

4. Both 1. and 2.

Which of the following is involved in allergic reaction ?

1. IgM

2. IgM and IgG

3. IgA

4. IgE

In Entamoeba histolytica, the presence of chromatid bodies is characteristic of

1. precystic stage

2. mature quadrinucleate stage

3. trophozoite stage

4. mature binucleate stage.

Adults of Wuchereria bancrofti attacks

1. exeretory system

2. nervous system 

3. digestive system

4. lymphatic system.

The sites of the first, second and third moulting of the Ascaris larva are respectively

1. soil, lung and intestine 

2. liver, stomach and intestine 

3. soil, alveoli and alveoli

4. soil, intestine and lung.

The crystal of lead zirconate is a key component

1. electroencephalography

2. electrocardiography

3. magnetoencephalography

4. sonography

Just as Xenopsylla is to Yersenia pestis, so is:

1. Glossina palpalis to Wuchereria bancrofti

2. Culex to Plasmodium falciparum 

3. Homo sapiens to taenia solium 

4. Phlebotomus to Leishmania donovani

Which one of the following is a matching pair of a drug and its category?

1. Amphetamines - stimulant

2. Lysergic acid dimethyl amide - narcotic

3. Heroin - psychotropic

4. Benzodiazepine - pain killer

Electron beam therapy is a kind of radiation therapy to treat

1. Enlarged prostrate gland

2. Gall bladder stones by breaking them 

3. Certain types of cancer 

4. Kidney stones.