Question

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

• A. Silver or Tungsten
• B. Arsenic or Silver
• C. Gold or Tungsten
• D. None of these

Answer 1

The correct option is C Gold or Tungsten

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'.