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Question

Which technique made it possible to genetically engineer organisms?

A
Recombinant DNA techniques
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B
Heavy isotope labelling
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C
X-ray diffraction
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D
Hybridisation
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Solution

The correct option is A Recombinant DNA techniques
A transgenic, or genetically modified, organism is one that has been altered through recombinant DNA technology, which involves either the combining of DNA from different genomes or the insertion of foreign DNA into a genome.
Heavy isotope labelling - involves the use of non-radioactive isotopes that can act as a tracers used to model several chemical and biochemical systems.
X-ray diffraction - a scattering of X-rays by the atoms of a crystal that produces an interference effect so that the diffraction pattern gives information on the structure of the crystal or the identity of a crystalline substance.
Hybridisation - to find the gene of interest in a genome

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