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STD 12 - 7. human health and disease — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 7. human health and disease1 Mark
MCQ
Physical carcinogen, $e \cdot g ., UV-ray, X-ray$ and $\gamma$-rays causes
  • ✓
    $DNA\;damage$
  • B
    $RNA \;damage$
  • C
    $Both$ $(a)$ $and$ $(b)$
  • D
    $Protein\; damage$
✓

Answer

Correct option: A.
$DNA\;damage$
a
Transformation of normal cells into cancerous neoplastic cells may be induced by physical, chemical or biological agents. These agents are called carcinogens. Ionizing radiations like $X-$rays and gamma rays and non-ionizing radiations like $UV$ rays causes $DNA$ damage leading to neoplastic transformation

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