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Questions  >>  CBSE XII  >>  Biology

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

1 Answer

a. Evidences are there to suggest that essential life processes such as metabolism, translation, splicing etc. evolved around RNA.
b. RNA acts as a genetic material in some viruses and also as a catalyst in a few important biochemical reactions.
c. RNA being a catalyst was more reactive and hence unstable. Therefore, DNA has evolved from RNA with chemical modifications that makes it more stable.
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