In biolistic method of gene transfer, the microparticles coated with foreign DNA are bombarded into target cells at a very high velocity. These microparticles are made up of
Silver or Tungsten
Arsenic or Silver
Gold or Tungsten
None of these
A
Arsenic or Silver
B
None of these
C
Gold or Tungsten
D
Silver or Tungsten
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Solution
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Biolistic method or gene gun method is a direct or vectorless method of introducing DNA into cells that involves bombardment of cells with high-velocity microprojectiles coated with DNA. In biolistic method, tungsten or gold particles, coated with foreign DNA are bombarded into target at a very high velocity.
So, the correct answer is 'Gold or tungsten'.
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Assertion: Gold or tungsten microparticles coated with DNA are used in biolistics.
Reason: Gold and Tungsten are inert.