Which process is used for amplification or multiplication of $DNA$ for fingerprinting?

$A$: In $DNA$ fingerprinting,hybridization is done with molecular probes.
$R$: Molecular probes are small $DNA$ segments synthesized in the laboratory with a known sequence that recognize complementary sequences in $DNA$.

Write an explanatory note on $DNA$ Fingerprinting.

Arrange the following steps of $DNA$ fingerprinting in the correct sequence by selecting the appropriate option.
a) Digestion of $DNA$ by restriction endonucleases
b) Autoradiography
c) Blotting of $DNA$ fragments to nitrocellulose membrane
d) Isolation of $DNA$
e) Separation of $DNA$ fragments by electrophoresis

Who discovered $DNA$ fingerprinting?

Satellite $DNA$ is a useful tool for......