Difference between DNA and RNA are:
DNA
It is double stranded nucleic acid.
It contains deoxyribise sugar.
It contains Thymine (T) as a nitrogenous base.
It is the genetic and hereditary material of the cells.
It is present in the nucleus of the cells.
RNA
It is single stranded nucleic acid.
It contains ribose sugar.
It contains Uracil (U) instead of Thymine.
It is involved in synthesis of proteins.
It is present in both nucleus and cytoplasm.