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In gene gun method used to introduce alien DNA into host cells, microparticles of ____ metals are used.
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Tungsten or gold
Micro-injection is a method where the recombinant DNA is directly injected into the nucleus of an animal cell. In another method, suitable for plants, cells are bombarded with high velocity micro-particles of gold or tungsten coated with DNA in a method known as biolistics or gene gun.
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