Question

Microparticles for coating with DNA to be bombarded with gene gun are made of

• A. Silver or platinum
• B. Platinum or zinc
• C. Silicon or platinum
• D. Gold or tungsten

Answer 1

Answer: (D)

Gold or tungsten

For gene transfer into the host cell without using vector microparticles made of tungsten and gold coated with foreign DNA are bombarded into target cells at a very high velocity. This method is called biolistics or gene gun which is suitable for plants.

So the correct answer is option D.