Biotech engineering involves dealing with living organisms like animals, plants, microbes or biology in general. It involves modifying living organisms to make specific products, which have a specific use. Biotechnology involves disciplines like genetic engineering, biochemistry, microbiology, molecular biology, embryology, etc. Biotech engineering has applications in food, agriculture, medicine, environment, industry, forensic science, etc.

·        Medicine: Biotechnology is used to prepare vaccines, detect diseases in an infant before it is born and hence treat it better, preparation of enzymes, analysis and testing for diseases. Agriculture: Improved yields, disease resistant plants, insecticide resistant plants, stress resistant plants which grow in extreme conditions are all products of biotech engineering. Food: Nutraceuticals, where necessary nutrients are provided in fruits and vegetables, are a result of biotech engineering. A new variety of rice was introduced which contained vitamin A helped people with vitamin A deficiency.
·Gene therapy: This helps in treating diseases caused due to genetic defects where the defective gene is replaced by a functional one.
·Stem cells: In biotech engineering stem cells, which are cells that can develop into any kind of cell in the body, are used in treating leukaemia, cancer, spinal chord injuries, etc.

Human genome project was one of the most popular projects done by researchers where every gene was coded and this can be used as reference to detect defects. Cloning is another process, which has a lot of advantages and is faced with ethical issues. Biotech engineering is a relatively new branch of engineering, which is growing rapidly with each day.