Question

Select the correct statements out of the following .
(i)Both DNA and RNA are able to mutate.
(ii)RNA being unstable , mutates at a faster rate.
(iii)RNA shows catalytic properties.
(iv)Presence of uracil (U) at place of thymine (T) confers additional stability to RNA.

Answer 1

1st 2nd and 3rd are correct.

Explanation:

Both DNA and RNA are able to mutate but RNA being less stable due to the presence of hydroxyl group at 2nd carbon in place of within the structure of pentose sugar

The presence of catalytic property in rna shows the dominancy of rna in the early stage of evolution