•Describe the chemistry of purines and pyrimidines and their linkage in nucleic acid synthesis.

•Discuss the organization of DNA with special reference to Watson and crick model, composition, structure, role of Pairing

•Describe the structural forms of DNA

•Discuss the structure of different types of RNAs with special reference to composition, linkage, functions of RNA, micro-RNA

•Illustrate the structure and functions of various types of RNAs

•Describe the functions of various small RNAs present in cell

•Explain the structure and nomenclature of nucleotides, biomedical importance of natural and synthetic analogues

•Explain the higher organization of DNA.

• Difference between DNA, chromatid and chromosome