Medical biotechnology uses living cells and cell materials to research and then produce pharmaceutical and diagnosing products. These products help treat and prevent diseases. Medical biotechnology has huge potential to make medicine more efficient and easy. This technology is often hugely expensive compared to traditional treatments. The scope of biotechnology is extended to various branches of Biology. Some of these include tissue culture, development of transgenic plants and animals, development of antibodies etc. After the full knowledge of human genomes is available, biotechnology is going to play a major role in shaping the concept of future drug discovery, drug delivery, diagnostic methodology, clinical trials, and to a great extent the major lifestyle of the human society. CRISPRs are specialized stretches of DNA and are used in medical biotechnology as a tool to edit genomes. This allows scientists to alter DNA and modify gene functions, often called genetic engineering.There are many applications, like correcting genetic defects, treating diseases, preventing the spread of diseases, improving crops, and more.