History of Genetic Engineering Quiz

Recombinant DNA

Rudolf Jaenisch

Genentech

<p>Richard Flavell and Mary Dell-Chilton</p> Signup and view all the answers

<p>The main purpose of genetic engineering is to manipulate the genes of organisms to manifest desired traits.</p> Signup and view all the answers

<p>Cohen and Boyer were credited with the first performance of genetic engineering.</p> Signup and view all the answers

<p>Bt corn is the major genetically modified crop, and it received a Bt toxin gene (cry1Ab gene) from the soil bacterium Bacillus thuringiensis.</p> Signup and view all the answers

<p>The discovery of restriction enzymes was a major breakthrough. These enzymes allow the cutting of DNA molecules at specific regions, expanding the applications of rDNA technology to agriculture, pharmaceuticals, and scientific research.</p> Signup and view all the answers

<p>It uses the tumor-inducing plasmid of the bacterium to allow the foreign gene to be incorporated into the genome of the host plant.</p> Signup and view all the answers

<p>Genetic modification of animals involves the injection of hundreds to thousands of copies of the foreign gene to the zygote, resulting in a genetic mosaic.</p> Signup and view all the answers

<p>Recombinant DNA technology continuously strives to improve methods in identification, isolation, and introduction of the gene of interest. It also identifies novel applications to address concerns in agriculture, pharmaceuticals, and medicine.</p> Signup and view all the answers