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NEET2025Biology
Q.

Which are correct:

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

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

C. -interferon activate the cancer patients' 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

    A and C only

  2. B

    B and D only

  3. C

    D and E only

  4. D

    C and D only

Solution

Checking each:

  • A — Correct. CT and MRI are standard imaging tools for detecting tumours of internal organs.
  • B — Incorrect. Chemotherapy drugs kill cancerous (rapidly dividing) cells.
  • C — Correct. -interferon boosts the cancer patient's immune system to attack the tumour.
  • D — Incorrect. -interferons (not chemotherapeutic drugs) are biological response modifiers.
  • E — Incorrect. In leukaemia, the count of (abnormal) white blood cells is markedly increased.

A and C only.

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