Q194 / 200 · NEET 2023 (All India) · Zoology

In gene gun method used to introduce alien DNA into host cells, microparticles of ____ metals are used.

A
Silver
B
Copper
C
Zinc
Correct answer
D
Tungsten or gold

Solution

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.

Hence, the correct answer is option: 'D'.

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