Question

why RNA and not DNA was the first living molecule?

Answer 1

RNA was first formed, we can say this bcoz RNA acts as an enzyme also and hence it forms RNApolymerase which catalyses and initiates the reaction of DNA formation.

Hope it helps u.....

Answer 2

hi..

It now seems certain that RNA was the first molecule of heredity, so it evolved all the essential methods for storing and expressing genetic information before DNA came onto the scene. However, single-stranded RNA is rather unstable and is easily damaged by enzymes.

i hope it helps you...