The difference between RNA and DNA is because of

The correct option is A

Sugar and base

The correct option is Option (A):

Explanation of the correct option :

1. DNA and RNA are the main nucleic acid present in living organisms.
2. They are the genetic material of living organisms.
3. The primary distinction between DNA and RNA is in their constituents.
4. DNA is made up of four nitrogenous bases: adenine/A, guanine/G, cytosine/C, and thymine/T, whereas RNA is made up of uracil/U instead of thymine/T.
5. The sugar present in the DNA is deoxyribose while RNA consists of the ribose sugar.
6. Thus, the distinction between RNA and DNA is due to sugar and base.
7. There is no difference in the phosphate group.

Final answer: The difference between RNA and DNA is because of sugar and base.