NEET 2013 · Class 12

Molecular Basis of Inheritance

Uridine, present only in RNA is a

  1. (A)nucleoside
  2. (B)nucleotide
  3. (C)purine
  4. (D)pyrimidine

The NCERT line that answers it

Verbatim line

A nitrogenous base is linked to the OH of 1' C pentose sugar through a N-glycosidic linkage to form a nucleoside, such as adenosine or deoxyadenosine, guanosine or deoxyguanosine, cytidine or deoxycytidine and uridine or deoxythymidine.

Chapter
Molecular Basis of Inheritance
Section
5.1.1 Structure of Polynucleotide Chain
Page
1
Words matched
36 of 36

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states that uridine is a nucleoside, directly matching the correct answer, and distinguishes it from nucleotides by explaining the structural difference.

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