Question

Complete the following analogy:
Nitrogenous base which is not present in DNA : A : : Nitrogenous base which is not present in RNA : B
[0.77 Mark]

• A. A : Adenine : : B : Guanine
• B. A : Uracil : : B : Cytosine
• C. A : Thymine : : B : Uracil
• D. A : Uracil : : B : Thymine

Answer 1

The correct option is D A : Uracil : : B : Thymine

• DNA contains four bases $\to$ Adenine, guanine, cytosine and thymine
• RNA contains four bases $\to$ Adenine, guanine, cytosine and uracil