It is established that RNA is the first genetic material. Explain giving three reasons. (3)
RNA is the first genetic material.
Their reasons are as follows:
(i) RNA is a catalyst and in some viruses acts as genetic material also.
(ii) Many important biochemical reactions like metabolism, translation, splicing etc. in living systems are catalysed by RNA.
(iii) RNA is unstable and can be easily mutated leading to evolution. (3)