In biolistic method of gene trasfer, the microparticles coated with foreign DNA are bombarded into target cells at a very high velocity. These microparticles are made up of
1) silver or tungsten
2) arsenic or silver
3) gold or tungsten
4) none of these

Options

A. 1) silver or tungsten
B. 2) arsenic or silver
C. 3) gold or tungsten
D. 4) none of these

Answer

C

Explanation

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 bombared into target at a very high velocity.