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Study of mode of transmission of diseases is called

Parasitology
epidemiology
nosology
immunology
Additional Questions

A localized inflammatory response appears at the site of infection causes redness, swelling, pain and heat due to certain chemical, they are

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Antivenom is used for the treatment of snake bite. The treatment of snake bite by antivenom is an example of

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Just as Xenopsylla is to Yersinia pestis, so is:

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Which one of the following statements is correct with respect to immunity?

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A person likely to develop tetanus is immunized by administering

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Match column I with column II and choose the correct answer from the options given below.

Column IColumn II
aNeoplasmiHematopoietic cell tumours
bBenign tumouriiBone, cartilage tissue cancers
cCarcinomasiiiMalignant tumour
dSarcomasivCancer of epithelial tissues
eLymphomasvInitiation of new tumours

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Assertion: The phenomenon where tumour cells detach and migrate to other parts of the body where they give rise to secondary tumours is called Metastasis.

Reason: Abnormal antigens on the surface of cell and unusual number of chromosomes cause Metastasis.

The correct answer is

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Assertion: LSD and marijuana are clinically used as analgesics.

Reason: Both these drugs suppress brain function.

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Assertion: Escherichia coli, Shigella sp. and Salmonella sp. are all responsible for diarrhoeal diseases.

Reason: Dehydration is common to all types of diarrhoeal diseases and adequate supply of fluids and electrolytes should be ensured.

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Assertion: Mast cells in the human body release excessive amounts of inflammatory chemicals, which cause allergic reactions.

Reason: Allergens in the environment on reaching human body stimulate mast cells in certain individuals.

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