Q. In gene gun method used to introduce alien DNA into host cells, microparticles of ______ metal are used.
A) Silver
B) Copper
C) Zinc
D) Tungsten or gold
Explanation
[Solution from source] In biolistics the DNA is coated on heavy metal particles, i.e. gold or tungsten. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.