Question
Biology Question on biotechnology
In gene gun method used to introduce alien DNA into host cells, microparticles of ________ metal are used.
A
Zinc
B
Tungsten or gold
C
Silver
D
Copper
Answer
Tungsten or gold
Explanation
Solution
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.
Therefore, The correct option is (B): Tungsten or gold