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Which of the following nitrogen base is not found in DNA? A Thymine B Cytosine C Guanine D Uracil

Which of the following nitrogen base is not found in DNA?

A

Thymine

B

Cytosine

C

Guanine

D

Uracil

 
 
 

Grade:12th pass

1 Answers

Vikas TU
14149 Points
4 years ago
Dear student 
DNA is a polymer of deoxyribonucleotides. The deoxyribonucleotides are made up of phosphoric acid and deoxyribonucleosides. The deoxyribonucleosides are made up of deoxyribose sugars and nitrogenous bases. The nitrogenous bases present in DNA are purine (adenine or guanine) and pyrimidine (cytosine or thymine). Uracil is absent from DNA. Uracil is present as pyrimidine base in ribonucleotides which are components of RNA.
So, the correct answer is option D.

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