CBSE Class 9 Answered

There are two types of nucleic acids which are polymers found in all living cells. Deoxyribonucleic Acid (DNA) is found mainly in the nucleus of the cell, while Ribonucleic Acid (RNA) is found mainly in the cytoplasm of the cell although it is usually synthesized in the nucleus.

DNA contains the genetic codes to make RNA and the RNA in turn then contains the codes for the primary sequence of amino acids to make proteins.

A major difference between DNA and RNA is that DNA contains thymine, but not uracil, while RNA contains uracil but not thymine.

In DNA, sugar is deoxyribose whereas in RNA the sugar is ribose.