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Due to discovery of which of the following in 1980 the evolution was termed as RNA world?

1. mRNA, tRNA, rRNA synthesise proteins
2. In some virus RNA the genetic material
3. RNA have enzymatic property
4. RNA is not found in all cells

Correct answer: RNA have enzymatic property

Solution

The RNA world hypothesis became plausible when scientists discovered that some RNA molecules can act as enzymes, called ribozymes. This showed RNA could both store genetic information and catalyze reactions, making it a likely early biological molecule.

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