Human Health and Disease

Antivenom injection contains preformed antibodies while polio drops that are administered into the body contain -

1. Attenuated pathogens
2. Activated pathogens
3. Harvested antibodies
4. Gamma globulin

Which of the following statements is not true for cancer cells in relation to mutations ?

1. Mutations inhibit production of telomerase
2. Mutations in proto-oncogenes accelerate the cell cycle
3. Mutations destroy telomerase inhibitor
4. Mutations inactivate the cell control

In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self-cells, then it leads to

1. Active immunity
2. Allergic response
3. Graft rejection
4. Auto-immune disease

Which of the following sets of diseases is caused by bacteria ?

1. Herpes and influenza
2. Cholera and tetanus
3. Tetanus and mumps
4. Typhoid and smallpox

Which of the following is correct regarding AIDS causative agent HIV ?

1. HIV is unenveloped retrovirus
2. HIV is enveloped virus containing one molecule of single-stranded RNA and one molecule of reverse transcriptase.
3. HIV does not escape but attacks the acquired immune response
4. HIV is enveloped virus that contains two identical molecules of single-stranded RNA and two molecules of reverse transcriptase

Which of the following immunoglobulins does constitute the largest percentage in human milk?

1. IgM
2. IgA
3. IgG
4. IgD

Which of the following diseases is caused by a protozoan?

1. Influenza
2. Babesiosis
3. Blastomycosis
4. Syphilis

Grafted kidney may be rejected in a patient due to -

1. Humoral immune response
2. Cell-mediated immune response
3. Passive immune response
4. Innate immune response

Match each disease with its correct type of vaccine

1. A - (i), B - (ii), C - (iv), D - (iii)
2. A - (iv), B - (iii), C - (ii), D - (i)
3. A - (ii), B - (i), C - (iii), D - (iv)
4. A - (iii), B - (ii), C - (iv), D - (i)

The active form of Entamoeba histolytica feeds upon

1. food in intestine
2. mucosa and submucosa of colon only
3. blood only
4. erythrocytes, mucosa and submucosa of colon