Genetically Modified Techniques : Gm Crops

1758 WordsMay 11, 20178 Pages
Genetically Modified Techniques GM crops are created by inserting a gene externally from an foreign source into unrelated species. This has granted an ability to overcome many physiological barriers and to exchange genetic information among all living organisms. The purpose of genetic modification is to create a faster, efficient, and much more precise way to achieve the same results from artificial selection. Additionally, it can be used in order to introduce a new trait to the crop that would not be usually naturally occurring. These GM crops can have many beneficial traits that improves the overall charactderistics of the plant this includes: extended shelf-life, drought-tolerance, pesticidal/herbicidal resistance, and increased…show more content…
These protein products can be enzymes that catalyze reactions in the organism or they can be lead to expression of a specific trait in the crop. First, in order for geneticists to identify a gene of interest, they start by lookin at other potential organisms.The geneticist has to identify the trait they desire the organism to have and must find any other organisms that already contain that gene. Finding a novel gene of interest requires intensive research into that gene as well as luck. As an example, if a scientist wanted a gene that improved the nutrient composition of a plant, they would look through many organisms that they believed that produces that specific nutrient, additionally if a scientist wanted a crop to have a gene that allows it to survive in drought conditions, they would most likely look for an organism living in those persistently hotter conditions. Additionally, this also involves testing in order to find the organism with the most ideal and “worthy” trait. Secondly, in order to isolate a gene of interest, comparative gene analysis must be done in order to locate and decode the specific organisms gene of interest. Whole genome alignment is done with plants that have and do not have the gene to pinpoint the regions of difference, and if there are no pre-sequenced genomes are available to perform comparison tests, scientists will use gene knockouts on the plant genome till the characteristic of interest is gone,
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