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Techniques of genetic engineering

What are the chief techniques of the genetic engineering at the current level of biotechnology?

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The chief techniques of the genetic engineering today includes following:

The recombinant DNA technology (also known as the genetic engineering itself) where pieces of the genes from the organism are included within the genetic material of some other organism generating the recombinant beings; the nucleus transplantation technology, popularly called as ‘cloning’, where a nucleus of the cell is grafted in the enucleated egg cell of same species in order to form the genetic copy of donor individual; The technology of DNA amplification, or PCR -polymerase chain reaction, which enables millions replications of the chosen fragments of the DNA molecule. The recombinant DNA technology is used to form the transgenic organisms, just like the mutant insulin-generating the bacteria. The nucleus transplantation technology is in its early development however it is the basis.

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