Multiple choice

For transformation, microparticles coated with DNA to be bombarded with gene gun are made up of

  1. silver or platinum

  2. platinum or zinc

  3. silicon or platinum

  4. gold or tungsten
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A gene gun or a biolistic particle delivery system which was actually designed for plant transformation is a device for injecting cells with genetic information. The payload is an elemental particle of a heavy metal coated with plasmid DNA. Microparticles coated with DNA to be bombarded with gene gun are made up of gold or tungsten.

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