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.
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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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Which one of the following diseases is a communicable? |
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AIDS virus spreads in the body through |
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The cells which act as parasites in the body |
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TAB vaccine is useful against |
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