Question

Adenine, pentose sugar and and a single phosphate combine to form

• A. Adenosine
• B. Adenylic acid
• C. Adenosine diphosphate
• D. Adenine triphosphate

Answer 1

The correct option is B Adenylic acid

The sugars which are present in the nucleotide are ribose or deoxyribose. The nitrogenous bases are purines and pyrimidines. The phosphate is present as phosphoric acid. The nucleotide is formed by the union of a phosphate group with a nucleoside. A nucleoside, in fact, contains a sugar molecule along with an organic nitrogenous base.

Adenylic acid is formed by linkage of adenine, ribose sugar and phosphate. It is a nucleotide found in RNA.

So, the correct answer is option B.