Biomolecules and Chemistry in Everyday Life - Result Question 19

####20. Which one of the following bases is not present in DNA?

(a) Quinoline

(b) Adenine

(c) Cytosine

(d) Thymine

(2014 Main)

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Answer:

Correct Answer: 20. (c)

Solution:

  1. Quinoline is an alkaloid, it is not present in DNA. DNA has four nitrogen bases in adenine, guanine, cytosine and thymine.


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