Question

How many components are present in the basic unit of DNA?

• A. One
• B. Two
• C. Three
• D. Four

Answer 1

Answer:

C. Three

There are three components in the basic unit of DNA which is also known as a nucleotide, and they are: i. A nitrogenous base: purine or pyrimidine ii. A pentose sugar: Deoxyribose sugar iii. Phosphate group.