Biotechnology can be used in the many professional fields, like. crop biotechnology, animal husbandry, human health, environmental Pollution etc.
(i) In agriculture biotechnology is used to produce improved varieties of plants and animal breeds, and to control pests and pathogens.
(ii) By using biofertilizers, the use of chemical fertilizers is reduced. Use of bacteria such as Rhizobiurm, Azotobacter, Nostoc, Anabaena and plants like Azolla the nitrogen fixation and phosphate solubilization abilities of the plants are improved
(iii) Animal husbandry is now using the methods of artificial insemination and embryo transfer by which the breeds of cattle are improved.
(iv) It is applied in food processing industries to produce additives.
(v) It is applied to produce biocatalysts and biopolymers.
(vi) Many biotechnological processes are applied to control pollution and treat waste water.
(vii) It is applied in the field of health care to produce several vaccines, drugs and hormones like insulin, etc.
(7) DNA fingerprinting technology has revolutionized the profession of forensic science.