Give scientific reasons: $DNA$ and not $RNA$ is the genetic material in the majority of organisms.

(N/A) The $2'-OH$ group present at every nucleotide in $RNA$ makes it chemically reactive and structurally unstable. This makes $RNA$ prone to degradation and catalytic activity. In contrast,$DNA$ lacks this $2'-OH$ group,making it chemically less reactive and structurally more stable. Furthermore,the presence of thymine instead of uracil in $DNA$ provides additional stability. Due to these factors,$DNA$ is better suited for the storage of genetic information,making it the preferred genetic material in the majority of organisms.