Deoxyribonucleic Acid (DNA) Vs Ribonucleic Acid (RNA)

Deoxyribonucleic Acid (DNA)	Ribonucleic Acid (RNA)
It occurs mainly in the nucleus of the cell.	It occurs in the cytoplasm of the cell.
It has double stranded α-helix structure in which two strands are coiled spirally in opposite directions.	It has single stranded α -helix structure.
The sugar molecule is 2-deoxyribose.	The sugar molecule is ribose.
Nitrogenous base uracil is not present.	Nitrogenous base thymine is not present.
It has the unique property of replication.	It usually does not replicate.
It is responsible for the transmission for heredity character.	It helps in protein biosynthesis.
DNA molecules are very large, their molecular masses may vary from 6 X 106 – 16 X 106 u.	RNA molecules are much smaller with molecular mass ranging from 2 X 104 – 4 X 104 u.