Question

Nitrogen base is attached to pentose sugar in a nucleoside at carbon atom

Answer 1

$\text{Nucleoside: Bonding between base and sugar}$

Nucleic acids are made up of multiple units of nucleotides. Nucleotides are made of:

• Nucleosides (nitrogenous bases + pentose sugar)
• Phosphate group

Nitrogenous bases (adenine, thymine/uracil, guanine and cytosine) gets linked to the pentose sugar (ribose or deoxyribose) in a nucleoside at 1’ carbon atom by a $\beta -N$ glycosidic linkage.

$\text{Final answer:}1$