Why is DNA molecule a more stable genetic material than RNA? Explain.
There is now enough evidence to suggest that essential life processes (such as metabolism, translation, splicing, etc.) revolved around RNA. RNA used to act as a genetic material as well as a catalyst (there are some important biochemical reactions in living systems that are catalyzed by RNA catalyst and not by protein enzymes). But, RNA being a catalyst was reactive and hence unstable. Therefore, DNA has evolved from RNA with chemical modifications that make it more stable. DNA being double-stranded and having complementary strands further resists changes by evolving a process of repair.
