Question

Match the column: –

	Column I		Column II
(i)	Electroporation	(p)	Recombinant DNA is coated with lipid
(ii)	Micro-injection	(q)	Tiny high velocity particles of tungsten or gold are coated with recombinant DNA
(iii)	Lipofection	(r)	Cells are exposed to rapid pulse of high voltage
(iv)	Particle Bombardments	(s)	Directly injected to the nucleus of animal cell through micro

• A. (i-r) (ii-q) (iii-p) (iv-s)
• B. (i-r) (ii-s) (iii-p) (iv-q)
• C. (i-r) (ii-q) (iii-p) (iv-s)
• D. (i-r) (ii-q) (iii-p) (iv-s)
• E. (i-p) (ii-s) (iii-q) (iv-r)

Answer 1

The correct option is B (i-r) (ii-s) (iii-p) (iv-q)

Different methods for introducing DNA areas micro-injection, recombinant DNA is directly injected into the nucleus of an animal cell.

In another method, suitable for plants, cells are bombarded with high velocity micro-particles of gold or tungsten coated with DNA in a method known as biolistic or gene gun. And the last method uses ‘disarmed pathogen’ vectors, when allowed to infect the cell, transfer the recombinant DNA into the host.

So, the correct answer is "option B".