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Molecular Basis Of Inheritance

Question

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

Solution

RNA was the first genetic material in cells because:

i. RNA is capable of both storing genetic information and catalyzing chemical reactions

ii. Essential life processes (such as metabolism, translation, splicing, etc.), evolved around RNA.

iii. It has the tendency of self-replication.

Some More Questions From Molecular Basis of Inheritance Chapter

What is the difference between DNAs and DNAase ?

Which was first genetic material ?

Suggest one evidence to prove that RNA was first genetic material.

Why was RNA unstable ?

What made DNA more preferrable as genetic material ?

Process of replication is completed in how much time in E.coli ?

What is average rate of polymerization ?

List three components of transcription unit.

Which RNA acts as an adapter ?

Name three kinds of polymerases.

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