Question

The difference between RNA and DNA is because of ________.

• A. Sugar and base
• B. Sugar and phosphate
• C. Phosphate and base
• D. Sugar only

Answer 1

The correct option is A Sugar and base

RNA and DNA both are genetic materials. They are composed of pentose sugar, phosphate and nitrogenous bases. RNA has ribose sugar while DNA has deoxyribose sugar. Phosphate is common in both RNA and DNA. RNA has uracil nitrogenous base instead of thymine which is present in DNA. Thus, the difference between RNA and DNA is because of sugar and base.

So, the correct answer is option A.