# Which one of the following base is not present in DNA?

$\begin{array}{1 1}(A)\;\text{Cytosine}\\(B)\;\text{Thymine}\\(C)\;\text{Quinoline}\\(D)\;\text{Adenine}\end{array}$

Quinoline base is not present in DNA
In DNA, four bases have been found. They are adenine (A), guanine (G), cytosine (C) and thymine (T).
Hence (C) is the correct answer.
edited Nov 25, 2017