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Question: Answered & Verified by Expert
Which of the following is not a pyrimidine ?
BiologyBiomolecules (B)JIPMERJIPMER 2008
Options:
  • A Thymine
  • B Uracil
  • C Guanine
  • D Cytosine
Solution:
2662 Upvotes Verified Answer
The correct answer is: Guanine
The nitrogenous bases are of two types :
(a) Pyrimidine base-cytosine, thymine
(b) Purine base-adenine, guanine.
These nitrogenous bases are found in DNA/RNA. Uracil is found in RNA in place of thymine.

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