biotechnology, the use of biological processes, as through the exploitation and manipulation of living organisms or biological systems, in the development or manufacture of a product or in the technological solution to a problem. As such, biotechnology is a general category that has applications in pharmacology, medicine, agriculture, and many other fields.

The techniques of genetic engineering have been used to manipulate the DNA (genetic material; see nucleic acid) of bacteria and other organisms to manufacture biological products such as drugs (insulin, interferon, and growth hormones). A common technique involved in this process in gene splicing, in which a gene that produces a desired product can be inserted into bacterial DNA. Bacteria can then be grown in large quantities and processed to extract the desired substance; specially cultured plant and animal cells can be similarly grown and processed. Hybrids of cancer and antibody-producing cells (hybridomas) have been cloned in the laboratory to mass produce experimental monoclonal antibodies, which are being studied for the treatment of cancer and other diseases. Bacteria have also been altered to break down oil slicks and industrial waste products.

Plants and foods with such desired qualities as prolonged shelf life or increased resistance to diseases and pests have been created through genetic engineering; that is, by inserting DNA from other organisms. Much of the corn and soybeans grown in the United States, for example, are now genetically modified in some way, Livestock have also been genetically altered to produce medically useful substances (see pharming). The field of biotechnology also includes gene therapy, in which attempts are made to insert normal or genetically altered genes into cells to treat genetic disorders and chronic diseases.

See R. W. Old and S. B. Primrose, Principles of Gene Manipulation (5th ed. 1994); J. E. Smith, Biotechnology (3d ed. 1996).

The Columbia Encyclopedia, 6th ed. Copyright© 2015, The Columbia University Press.

Biotechnology: Selected full-text books and articles

Evolutionary Innovations: The Business of Biotechnology By Maureen D. McKelvey Oxford University Press, 2000
Biotechnology and the Human Good By C. Ben Mitchell; Edmund D. Pellegrino; Jean Bethke Elshtain; John F. Kilner; Scott B. Rae Georgetown University Press, 2006
The Dynamics of Industrial Clustering: International Comparisons in Computing and Biotechnology By G. M. Peter Swann; Martha Prevezer; David Stout Oxford University Press, 1998
Engineering Trouble: Biotechnology and Its Discontents By Rachel A. Schurman; Dennis Doyle Takahashi Kelso University of California Press, 2003
Ethics and Biotechnology By Anthony Dyson; John Harris Routledge, 1994
Changing Nature's Course: The Ethical Challenge of Biotechnology By Gerhold K. Becker; James P. Buchanan Hong Kong University Press, 1996
Medical Biotechnology: Achievements, Prospects and Perceptions By Albert Sasson United Nations University Press, 2005
Patent First, Ask Questions Later: Morality and Biotechnology in Patent Law By Bagley, Margo A William and Mary Law Review, Vol. 45, No. 2, December 2003
Looking for a topic idea? Use Questia's Topic Generator
Author Advanced search


An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.