Question

In both DNA and RNA, heterocyclic base and phosphate ester linkages are at

• A. $C_5^{{}^{\prime }}$ and $C_2^{{}^{\prime }}$ respectively of the sugar molecule
• B. $C_2^{{}^{\prime }}$ and $C_5^{{}^{\prime }}$ respectively of the sugar molecule
• C. $C_1^{{}^{\prime }}$ and $C_5^{{}^{\prime }}$ respectively of the sugar molecule
• D. $C_5^{{}^{\prime }}$ and $C_1^{{}^{\prime }}$ respectively of the sugar molecule

Answer 1

The correct option is C $C_1^{{}^{\prime }}$ and $C_5^{{}^{\prime }}$ respectively of the sugar molecule

Option (c)


You can see that the base is at the $C_1^{{}^{\prime }}$ carbon and the phosphate linkage is at the $C_5^{{}^{\prime }}$ carbon.