QHow many years has genetic modifications been taking place?

How many years has genetic modifications been taking place?

AExpert Answer

Nature is the master of genetic shuffling and is constantly sorting and resorting DNA, causing both subtle and profound changes in all living things. People first began their own DNA management thousands of years ago, when they began crossbreeding plants to produce better foods or fiber. In 1953, scientists discovered the structure of DNA, and in 1973, researchers developed a method for cutting and splicing DNA. That method became known as recombinant DNA, or rDNA, because it enabled scientists to cut and recombine segments of DNA. Since then, researchers have learned how to move genetic material in the form of DNA from one plant or animal to another.


Genetic modification is much more precise than selective breeding. By transferring only certain genes from one plant or animal to another, researchers can introduce one specific trait without also transferring dozens of unwanted traits, as often occurs in selective breeding. And genetic modification is the only existing tool available for producing certain vaccines, drugs and diagnostics. Genetic modification in plants has been going on since the early 1980s.  In 1986, EPA approved commercial growing of the first genetically engineered crop - tobacco plants resistant to a tobacco virus.


For more info go to the explore section of GMO answers, scroll down to "History of crop modification" and you will find the history and a link to a food biotechnology timeline.

Posted on August 15, 2017
The first use of recombinant DNA technology, was created by Cohen and Boyer in 1972 with E.coli in 1972 and this article explains this advancement in biotechnology in greater detail. Here is an excerpt: “Their experiments dramatically demonstrated the potential impact of DNA recombinant engineering on medicine and pharmacology, industry and agriculture.”   Recombinant insulin was the first commercial product derived from genetic engineering techniques created in 1976 by the... Read More
Posted on May 6, 2017
A gene with a desirable trait can be moved from one organism to another organism as a means to change it. The traditional way is through selective breeding, which is slow, time consuming, inefficient, and transfers more than one gene, so other unexpected and unwanted traits can cause problems. But genes also can be moved in a laboratory, resulting in what has been called a genetically modified (“transgenic”) organism (GMO). GM technology moves only one gene, eliminating other,... Read More
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Posted on May 6, 2017
A gene with a desirable trait can be moved from one organism to another organism as a means to change it. The traditional way is through selective breeding, which is slow, time consuming, inefficient, and transfers more than one gene, so other unexpected and unwanted traits can cause problems. But genes also can be moved in a laboratory, resulting in what has been called a genetically modified (“transgenic”) organism (GMO). GM technology moves only one gene, eliminating other,... Read More
Answer:

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