Origin of First Genetic Material — NEET Biology

Which of the following statements regarding RNA's properties and its evolutionary significance are NOT correct? S1: The presence of a 2'-OH group in every nucleotide residue of RNA contributes to its enhanced chemical stability and reduced reactivity compared to DNA. S2: Ribozymes, which are RNA molecules with catalytic properties, provide crucial evidence supporting the hypothesis that essential life processes evolved around RNA. S3: DNA is primarily favored for the storage of genetic information due to its single-stranded nature and the presence of uracil, which facilitates rapid mutation. S4: The instability of RNA due to its reactive 2'-OH group and catalytic nature was a key factor that favored the evolution of more stable DNA as the predominant genetic material. S5: While RNA can function as genetic material in some viruses, its additional roles in most organisms are limited to acting solely as a messenger molecule. S6: Viruses with RNA genomes typically exhibit lower mutation rates and slower evolutionary adaptation compared to those with DNA genomes, attributing to RNA's inherent stability.