Question

Ribose sugar occurs in

• A. RNA and ATP
• B. RNA polymerase and ATP
• C. RNA only
• D. RNA polymerase, RNA and ATP

Answer 1

The correct option is A RNA and ATP

ATP is known as energy currency of the cell and it is formed by the combination of adenine as a nitrogenous base, ribose sugar, and triphosphate. It is found in free cells which breaks to form energy by breaking its high energy phosphate bonds.

RNA consists of sugar, nitrogenous base, and phosphate. The nitrogenous bases are purines and pyrimidines. The purines are adenine and guanine. The pyrimidines are thymine, uracil, and cytosine. In RNA, the thymine present in DNA is replaced by uracil. It consists of the ribose sugar.

So, the correct answer is option A.