Which base is not found in DNA:
Ans. D. UracilBoth DNA and RNA contain same type of purines namely Adenine (A) and Guanine (G). The pyrimidine, in DNA are Thymine (T) and Cytosine(C). The pyrimidines in RNA are Uracil (U) and Cytosine(C).
Adenine
Guanine
Cytosine
Uracil
Chemistry of Nucleotides 