1.

It is established that RNA is the first genetic material. Explain giving three reasons. 

Answer»

The reasons in support are: 

(i) Processes like metabolism, translation and splicing evolved around RNA. 

(ii) RNA is reactive and catalyses reactions. 

(iii) In some viruses, RNA is the hereditary material. 

(iv) RNA is unstable and can be easily mutated leading to evolution.



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