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BotanyNEET 2025Immunity, vaccination, AIDS, cancer

Human Health and Disease

Which are correct?

A. Computed tomography and magnetic resonance imaging detect cancers of internal organs.

B. Chemotherapeutic drugs are used to kill non-cancerous cells.

interferon activates the cancer patient's immune system and helps in destroying the tumour.

D. Chemotherapeutic drugs are biological response modifiers.

E. In the case of leukaemia, blood cell counts are decreased.

Choose the correct answer from the options given below:

  1. A.B and D only
  2. B.D and E only
  3. C.C and D only
  4. D.A and C only✓

Solution

CT and MRI detect internal cancers (A), and interferon is a biological response modifier that activates the patient's immune system (C). Chemotherapeutic drugs kill cancerous cells and are not biological response modifiers; leukaemia raises the blood cell count. Hence A and C.

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