Blood stains are found at the site of a murder. If $DNA$ profiling technique is to be used for identifying the criminal,which of the following is ideal for use?

Who developed $DNA$ fingerprinting?

In which step of $DNA$ profiling,nitrocellulose membrane is used?

Which scientist developed the $DNA$ sequencing method?

$A$: 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 $DNA$.

Which technique is required to study the binding of specific proteins to $DNA$ sequences?