The document provides an overview of the topics covered in the code BT (Bio-Technology) for the TSPGECET-2018 exam, including: 1. Core subjects like microbiology, biochemistry, molecular biology and genetics, process biotechnology, bioprocess engineering, plant and animal biotechnology, and immunology. 2. Key areas in recombinant DNA technology such as restriction enzymes, vectors, gene cloning, expression and sequencing, and gene transfer technologies. 3. An introduction to bioinformatics and the main databases, analysis tools, and applications in genomics and proteomics like microarrays and molecular modeling.