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Multinational Corporation and Its Features

A nucleoside ...

Question

A nucleoside is formed through a N-glycosidic linkage by joining

A

Nitrogen base with pentose sugar

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B

Phosphate group with nitrogen base

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C

Nitrogen base with nitrogen base

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D

Pentose sugar with phosphate group

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Solution

The correct option is A Nitrogen base with pentose sugar
Part 1: Structure of a nucleoside
A nucleoside is composed of a pentose sugar and a nitrogenous base. The nitrogenous base attaches to the $1$ ’ carbon atom of the sugar via an N-glycosidic bond.

Final answer
(c) Nitrogen base with pentose sugar

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Similar questions

Q. In polynucleotide chain, a nitrogenous base is linked to ................... through a N-glycosidic linkage to form a nucleoside. Fill the correct update.

Q. Read (i) to (v) and find the correct option.
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N -

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(ii) Phosphate group is linked to

5^{'} - O H

of a nucleoside through phosphoester linkage
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(v) Chromatin that is more densely packed and stains dark is called euchromatin

Q. ead (i) to (v) and find the appropriate option.

(i) Nitrogen base is linked to OH of 1’C pentose sugar through N-glycosidic linkage.
(ii) Phosphate group is linked to OH of 5’C of a nucleoside through phosphoester linkage.
(iii) Two nucleosides are linked through 3’–5’ N-glycosidic linkage.
(iv) Negatively charged DNA is wrapped around positively charged histone octamer to form nucleosome
(v) Chromatin that is more densely packed and stains dark is called euchromatin.

Q. Which of the following characteristics is/are true regarding double stranded DNA?
a. Purine and pyrimidines are present in equal amount.
b. The bases of two strands are paired through hydrogen bonds.
c. Adenine is equimolar with guanine.
d. Phosphate group is linked to a nucleoside through N-glycosidic linkage.
[0.7 mark]

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