Answers

2016-03-22T17:09:23+05:30
The primary transcript contains introns and exons. " presence of introns in reminiscent of antiquity " implies that introns were previously in past an important piece of information used to form the rna and is now of no importance.

" process of splicing represents the dominance of rna world " implies that  rna is one that decides whether to keep introns or not.dna keeps them both.

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