Match the following and identify the correct match

	Column - I		Column - II
A)	Gel electrophoresis	i)	Separation and purification of transgene product
B)	Micro-injection	ii)	Technique of separation of DNA fragments
C)	Spooling	iii)	Isolation of purified DNA from centrifuge
D)	Down streaming process	iv)	Direct method of gene transfer into animal cells

	(A)	(B)	(C)	(D)
1)	ii	iv	iii	i
2)	ii	iii	i	iv
3)	iv	i	ii	iii
4)	i	ii	iv	iii