For transformation, microparticles coated with DNA to be bombarded with Gene gun are made up of

Silver or platinum

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Platinum or zinc

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Silicon or platinum

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Gold or tungsten

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Solution

The correct option is D
Gold or tungsten

Biolistics or gene gun is a direct or vectorless way used to introduce alien DNA into host cells. In this method of gene transfer, higher velocity particles of gold or tungsten coated with DNA are bombarded on the plant cells.

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