This module introduces you to the structures and reactions of the different biomolecules present in living organisms, which include DNA and Nucleic Acids. The structure of DNA, its properties, components and replication process are discussed in detail. You will also learn about the orientations of the component molecules of DNA, which give DNA its double-helix form and the sequences of the DNA base pairs.

This module discusses the molecular structures of some large biomolecules, such as nucleic acids, proteins and lipids, and the possible variations in their structures and properties, both naturally and by chemical reactions in the laboratory. In this module, you will learn about the folding and unfolding of proteins in the laboratory and chemical synthesis of some non-naturally occurring nucleobases.