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In evolutionary history which of the following rose 1^st?(a) DNA(b) RNA(c) Protein(d) Oxygenic mode of respirationI had been asked this question during an online interview.Enquiry is from Ribosome as Ribozyme in portion Gene Expression : Translation of Cytogenetics

Answer»

The CORRECT CHOICE is (B) RNA

The explanation: RNA was the 1^st to arise which served both as information storage and as enzyme NAMELY ribozyme. Later it transferred the activities to more specific molecules namely DNA and protein respectively.



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