Genetic engineering, also calledgenetic modification, is the direct manipulation of an organismsgenomeusing biotechnology. It is a set of technologies used to change the genetic makeup of cells, including the transfer of genes within and across species boundaries to produce improved or novelorganisms. Read important facts about Genetic Engineering in this article for the IAS Exam.
NewDNAmay be inserted in the host genome by first isolating and copying the genetic material of interest usingmolecular cloningmethods to generate a DNA sequence, or by synthesizing the DNA and then inserting this construct into the host organism.Genesmay be removed, or knocked out, using anuclease.Gene targetingis a different technique that useshomologous recombinationto change an endogenous gene and can be used to delete a gene, removeexons, add a gene, or introducepoint mutations.
Aspirants reading, GEAC can also refer to topics lined below:
Medicine, research, industry and agriculture are a few sectors where genetic engineering applies. It can be used on various plants, animals and microorganisms. The first microorganism to be genetically modified is bacteria.
Genetic Engineering Appraisal Committee (GEAC) is the biotech regulator in India. It is created under the Ministry of Environment and Forests. Read more about GEAC in the linked article.
There are five bodies that are authorized to handle rules noted underEnvironment Protection Act 1986 Rules for Manufacture, Use, Import, Export and Storage of Hazardous Microorganisms/Genetically Engineered Organisms or Cells 1989. These are:
Soybean-Herbicide tolerance,Canola-Altered fatty acid composition,Plum-Virus resistance,Corn-Insect resistance
Pros:Tackling and Defeating Diseases,Getting Rid of All Illnesses in Young and Unborn Children,Potential to Live Longer,Produce New Foods,Faster Growth in Animals and Plants,Pest and Disease Resistance.Cons:May Lead to Genetic Defects,Limits Genetic Diversity,Reduced Nutritional Value,Risky Pathogens,Negative Side Effects
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