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单词 genetically modified organism
释义

Cultural definitions for genetically modified organism

genetically modified organism

See GMO.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

genetically modified organism

[ jə-nĕtĭ-kə-lē ]

n.

An organism whose genetic characteristics have been altered by the insertion of a modified gene or a gene from another organism using the techniques of genetic engineering.

Words nearby genetically modified organism

gene therapy, genethliac, genethlialogy, genetic, genetically modified, genetically modified organism, genetic amplification, genetic association, genetic code, genetic counseling, genetic counselling
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for genetically modified organism

genetically modified organism
[ jə-nĕtĭ-kə-lē ]

An organism whose genetic characteristics have been altered using the techniques of genetic engineering.

A Closer Look

Scientists today have the ability to modify the genetic makeup of plants and animals, and even to transfer genes from one species to another. Not since nuclear power has a technology been so controversial, with opponents concerned about the creation of so-called Frankenfoods and proponents promising a better tomorrow through science. The term genetically modified organism (GMO) is used to refer to any microorganism, plant, or animal in which genetic engineering techniques have been used to introduce, remove, or modify specific parts of its genome. Examples include plants being modified for pest resistance; lab animals being manipulated to exhibit human diseases, such as sickle cell anemia; and even glowing jellyfish genes inserted in a rabbit for an art piece. GMOs show great promise in improving agriculture. Plants could be engineered to better tolerate temperature or weather extremes, to contain various vitamins, or to dispense medicines and vaccines. Many think genetically modified foods have the potential to end world hunger. On the other hand, there are fears that the disease- or pest-resistant genes inserted into crop plants might escape into other plants, creating hard-to-control superweeds. There is also the possibility of unexpected effects on other flora and fauna, the risk of agriculture being controlled by biotech companies, and, as with any new technology, problems that are yet unknown.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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