Question

Statement I: A unit formed by the attachment of a base to the 1’ position of sugar is known as a nucleoside.

Statement II: When a nucleoside is linked to phosphorous acid at the 5-position of the sugar moiety, we get a nucleotide.

In the light of the above statements, choose the correct answer from the options given below:

विकल्प

• Both Statement I and Statement II are false.

• Statement I is true but Statement II is false.

• Statement I is false but Statement II is true.

• Both Statement I and Statement II are true.

Answer 1

Statement I is true but Statement II is false.

Explanation:

Let us analyze both the statements to get the answer.

Nucleoside: Base links with the 1’ position of the sugar in nucleoside, so statement I is correct.

Nucleotide: When a nucleoside is linked to phosphoric acid at the 5’ position of the sugar moiety, we get a nucleotide.

Statement II is incorrect because it is not link with phosphorous acid.