This course exploring the explanation of central dogma of molecular biology through understanding of the aspects of molecular biology issues. It covers the structure and recombination of DNA and its function as instructional information in the cell; it is also discusses different types of RNAs and their processing as well as their role in protein synthesis. Moreover it covers transcription and translation processes that ends in protein synthesis and its targeting and assembly into different cell organelles. It ends with gene expression process and its regulation according to different theories