Answer:
DNA and RNA, Which are two types of nucleic acid are polymers of nucleotides.
The nucleotides are linked covalently between the 3' carbon atom of the pentose and the phosphate group attached to the 5' carbon of the adjacent pentose.
There are 5 types of nucleotides.
- Thymine.
- Cytosine.
- Adenine.
- Guanine.
- Uracil.