Definitions/Explanation : Probe & $VNTR$
$(1)$ A labelled single stranded $DNA$ or $RNA$ segment that can hybridize with a $DNA$ or $RNA$ of interest in a screening procedure.
$(2)$The human genome contains numerous short $DNA$ sequences that are present as tandem repeats of varied lengths at several chromosomal locations. These variable number tandem repeats [$VNTRs$]are important components of $DNA$ fingerprints.
Assertion : “ $DNA$ finger printing” has become a powerful tool to establish paternity and identity of criminals in rape and assault cases.
Reason : Trace evidences such as hairs, saliva and dried semen are adequate for $DNA$ analysis.
In $DNA$ fingerprinting, detection of hybridised $DNA$ fragments is possible by
Variable number of tandem repeats $(VNTRs)$ in the $DNA$ molecule are highly useful in
‘There is a paternity dispute for a child'. Which technique can solve the problem. Discuss the principle involved.
$DNA$ fingerprinting refers to