INTRODUCTION
1. INTRODUCTION TO MACROMOLECULES
1.5. Nucleic acid
Nucleic acids are the large macromolecules in the cells which are very long linear polymers, called polynucleotides.
They composed of nucleotides
A nucleotide contains: five-carbon sugar molecules
One or more phosphate groups
A nitrogenous base
DNA: A, T, G, C
RNA: A, U, G,C