Modern biotechnology contributes immeasurably in medicine. The area which it cover include gene therapy, pharmacogenomics, drug production and genetic testing. It is used to detect various genetic diseases and the tests are conducted for chorionic villus sampling, Amniocentesis and Down syndrome.

The other major benefic of biotechnology occur in the field of pharmacogenomics, which deals with the genetic inheritance of an individual affects his individual body against the response of the drug. Pharmacogenomics is the relationship between pharmaceuticals and genomics. Here the vision lies in manufacturing the drug that is adapted to each individual genetic makeup.

These vaccines are capable to elicit the immune response without involving any risk of infection. Here by chemistry small molecules are manufactured but larger molecules are constructed by living cells which are found in human body like animal or plant cells, yeast cells, bacteria cells. Biotechnology has brought landmark breakthrough in various medical therapies like cardiovascular disorder, multiple sclerosis, bone fracture, haemophilia, arthritis, cancer, hepatitis C and hepatitis B.