Which type of sugar is present in case of DNA and RNA ?

Hexose sugar. Pentose sugar . Heptose sugar . Tetrose sugar .

Pentose sugar .

In the chemical structure of a polynucleotide chain (DNA or RNA) , a nucleotide has three components – a nitrogenous base, a pentose sugar (ribose in case of RNA, and deoxyribose for DNA), and a phosphate group .