Nucleoside

Q.

A single nucleoside consists of

1. Sugar + Nitrogenous base

2. Nitrogenous base + Phosphate group

3. Sugar + Phosphate

4. Sugar + Nitrogenous base + Phosphate

Q. In nucleoside, where is the nitrogenous base attached to the pentose sugar?

1. Carbon-5' of pentose sugar
2. Carbon-1' of pentose sugar
3. N-1 and N-9
4. Both B and C

Q. A nucleoside is formed through an N-glycosidic linkage by joining:

1. Phosphate group with nitrogen base
2. Nitrogen base with nitrogen base
3. Nitrogen base with pentose sugar
4. Pentose sugar with phosphate group

Q. In nucleoside, where is the nitrogenous base attached to the pentose sugar?

1. Carbon-5' of pentose sugar
2. Both B and C
3. Carbon-1' of pentose sugar
4. N-1 and N-9