During the course of evolution why DNA was chosen over RNA as genetic material? Give reasons by first discussing the desired criteria in a molecule that can act as genetic material and in the light of biochemical differences between DNA and RNA.

The desired criteria in a molecule that can act as genetic material are as follows:

1.It should be chemically and structurally stable.

2.It should be able to replicate, that is replication should take place.

3.Mutation or gradual and slow changes should take place.

4.Should be able to express itself in Mendelian.

5.It must be able to transfer from parent to progeny for further evolution.

Biochemical Differences between DNA and RNA

These biochemical differences between the DNA and RNA makes DNA a desired genetic material.