NEET 2001 Biology question

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

(1)m-RNA, t-RNA- r-RNA synthesise proteins
(2)In some virus RNA is genetic material
(3)RNA have enzymatic propertyCorrect
(4)RNA is not found in all cells

Answer: (3)

Solution

The discovery of catalytic RNA (ribozymes) by Cech (self-splicing intron of Tetrahymena) and Altman (RNase P) in the early 1980s showed that RNA can act both as genetic material and as an enzyme. This supports the view that the first self-replicating, catalytic molecules were

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Question ID VK-088858