1. Tardigrade
  2. Question
  3. Chemistry
  4. Consider the following structures <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/chemistry/16d0b127dc7ac82b1c3349bbe2d04b8c-.png /> Identify I and II in the above structure and mark the correct option.

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Q. Consider the following structures
image
Identify I and II in the above structure and mark the correct option.

Biomolecules

Solution:

A unit formed by the attachment of a base to 1′ position of sugar is known as nucleoside. In nucleosides the sugar carbons are numbered as 1′,2′,3′ etc., in order to distinguish these from the bases. When nucleoside is linked to phosphoric acid at 5′-position of sugar moiety, we get a nucleotide.