NEET 2025 · Class 12
Molecular Basis of Inheritance
Given below are two statements: Statement I: In the RNA world, RNA is considered the first genetic material evolved to carry out essential life processes. RNA acts as a genetic material and also as a catalyst for some important biochemical reactions in living systems. Being reactive, RNA is unstable. Statement II: DNA evolved from RNA and is a more stable genetic material. Its double helical strands being complementary, resist changes by evolving repairing mechanism. In the light of the above statements, choose the most appropriate answer from the options given below :
- (A)Statement I is correct but statement II is incorrect
- (B)Statement I is incorrect but statement II is correct
- (C)Both statement I and statement II are correct
- (D)Both statement I and statement II are incorrect
The NCERT line that answers it
Verbatim lineRNA was the first genetic material.
- Chapter
- Molecular Basis of Inheritance
- Section
- 5.3 RNA WORLD
- Page
- 9
- Words matched
- 70 of 70
The answer appears as a continuous sentence in NCERT. This is that sentence.
How this line gives the answer
8333, emb=0.8073, combined=0.8177). Verified: high — The span 'RNA was the first genetic material' directly supports Statement I's claim about RNA being the first genetic material in the RNA world, and the full paragraph context confirms both statements about RNA's catalytic role, instability, DNA's evolution from RNA, and DNA's stability with repair mechanisms.
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