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NEETZoologyHuman Health and Diseases

Read the following statements carefully: (A) MRI uses ionizing radiations and strong magnetic fields to detect pathological changes. (B) Computed tomography uses X-rays to generate a three-dimensional image of the internal organs. (C) UV rays are non-ionizing radiations that cause DNA damage leading to neoplastic transformation. (D) Cellular oncogenes (c-onc) present in normal cells can lead to oncogenic transformati

Options

  1. ATwo
  2. BThree
  3. CFour
  4. DFive

Correct answer

C. Four

Step-by-step solution

Statement (A) is incorrect because MRI uses strong magnetic fields and non-ionizing radiations (not ionizing radiations) to accurately detect pathological and physiological changes in living tissue. Statement (B) is correct as Computed tomography (CT) uses X-rays to generate a 3-D image of the internals of an object. Statement (C) is correct because non-ionizing radiations like UV cause DNA damage leading to neoplastic transformation. Statement (D) is correct as cellular oncogenes (c-onc) or proto-oncogenes in norm

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