Select the appropriate option for $DNA$ fingerprinting.

What is $DNA$ polymorphism? Why is it important to study it?

In $DNA$ fingerprinting technique,the radioactive intermediates formed during hybridization are . . . . . . molecules.

What is the size range of $VNTR$?

Which of the following is the correct sequence of $\text{DNA}$ fingerprinting?
$(i)$ Digestion of $\text{DNA}$ by restriction endonucleases
$(ii)$ Hybridisation using labelled $\text{VNTR}$ probe
$(iii)$ Separation of $\text{DNA}$ fragments by electrophoresis
$(iv)$ Detection of hybridised $\text{DNA}$ fragments by autoradiography
$(v)$ Blotting
$(vi)$ Isolation of $\text{DNA}$

Which step is $NOT$ correct in $DNA$ fingerprinting?