Biotechnology Principles And Processes Question 4
Question: In gene gun method used to introduce alien DNA into host cells, microparticles of metal are used.
(1) Copper
(2) Zinc
(3) Tungsten or gold
(4) Silver
Show Answer
Answer: (3) Tungsten or gold
Explaination-
Tungsten or gold microparticles are commonly used in the gene gun method for gene transfer. The microparticles are coated with the foreign DNA of interest and are then propelled into the target cells using a biolistic device (gene gun). The high velocity of the microparticles enables them to penetrate the cell membranes and deliver the foreign DNA into the host cells, allowing for genetic transformation or transfection.
