Who developed $DNA$ fingerprinting?

Give scientific reasons: $DNA$ polymorphism is the basis of genetic mapping of human genome.

Comment on the utility of variability in the number of tandem repeats during $DNA$ fingerprinting.

Select the option that shows the correct sequence of the $DNA$ fingerprinting process.
$(i)$ Isolation of $DNA$
$(ii)$ Hybridization using labeled $VNTR$ probe
$(iii)$ Transfer of $DNA$ fragments to nylon membrane
$(iv)$ Separation of $DNA$ fragments by electrophoresis
$(v)$ Autoradiography
$(vi)$ Digestion of $DNA$ by restriction endonucleases

The sensitivity of $DNA$ fingerprinting can be increased by the use of:

$DNA$ fingerprinting technology was discovered by Alec Jeffreys and this technology uses: