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STD 12 - 5. molecular basis of inheritance — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 5. molecular basis of inheritance1 Mark
MCQ
Identify the incorrect statement about $RNA.$
  • A
    $RNA$ was the first genetic material to evolve in the living systems.
  • B
    Apart from being a genetic material, it is also a catalyst.
  • C
    $DNA$ evolved from $RNA$ with chemical modifications.
  • ✓
    $RNA$ being a catalyst is non-reactive and stable.
✓

Answer

Correct option: D.
$RNA$ being a catalyst is non-reactive and stable.
d
$RNA$ used to act as a genetic material as well as a catalyst (in some important biochemical reactions). But, $RNA$ being a catalyst is reactive and unstable.

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