What is DNA?
DNA backbone is a polymer with an alternating sugar-phosphate sequence.
DNA Double Helix
Double stranded macromolecule winded together
Purine and Pyrimidine
Purines have two rings
- Adenine and Guanine are purines
Pyrimidines have one ring
- Cytosine and Thymine are pyrimidine
The deoxyribose sugar of the DNA backbone has 5 carbons and 3 oxygens.
Nucleotides form the basic structural unit of nucleic acids such as DNA.
Adenine, Guanine, Thymine, and Cytosine.