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