Question

DNA and RNA are the information molecules of the cell. Explain clearly the differences in the basic structure of these two molecules.

Answer 1

DNA and RNA are the information molecules of the cell. These molecules, however, differ fundamentally in three ways.

• DNA consists of deoxyribose sugar while RNA consists of the ribose sugar.
• RNA is found in single-stranded form while DNA exists in a double helical structure.
• In DNA pyrimidine thymine is present while in RNA uracil is found.