Zoology - Molecular Basis of Inheritance Question with Solution | TestHub

In every nucleotide of RNA, there is a presence of free OH group on the 2nd carbon atom. This is a reactive group that makes RNA easily destructible. There is no free OH group on the 2nd carbon atom of DNA nucleotides. Addionally, the presence of thymine instead of uracil makes the DNA more stable. Thus, DNA is more stable but less reactive as compared to RNA.