Question

In which of the following methods, gold particles are used to introduce alien DNA into host cells?

• A. Micro-injection
• B. Biolistics
• C. Gene gun
• D. Both b and c

Answer 1

The correct option is D Both b and c

There are several ways to introduce alien DNA into the host cells.
In biolistics or gene gun method, alien DNA is introduced into the plant cells. The cells are bombarded with high velocity micro-particles of gold or tungsten coated with DNA.

In micro-injection method, rDNA is directly injected
into the nucleus of an animal cell.