Which of the following is not present in dna
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Which of the following nitrogen base is not present in dna.
A) uracil B) adenine C) thymine D) guanine
Answered by admin @
Question: Which of the following nitrogen base is not present in dna.
A) uracil B) adenine C) thymine D) guanine
Explanation:
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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