Question

Number of carbons in a ring of deoxyribose sugar is

• A. Three
• B. Four
• C. Five
• D. Six

Answer 1

Answer: (B)

Four

Deoxyribose sugar is a sugar which is mainly present in the nucleotides that make up the DNA. It has a four carbon ring. It differs from ribose sugar in having H group instead of OH group at the second carbon. The nucleotide is formed by the union of a phosphate group with a nucleoside. A nucleoside in fact contain a sugar molecule along with an organic nitrogenous base.

So, the correct answer is option B.