$DNA$ fingerprinting method is very useful for:

In a crime investigation,the investigating officer collects different biological samples from the crime spot for $DNA$ fingerprinting analysis. Which of the following samples is not helpful in this analysis?

Which of the following statements is incorrect?

Arrange the following steps of $DNA$ fingerprinting in a correct sequence.
$A$. Isolation of $DNA$ and its digestion by restriction endonucleases.
$B$. Hybridisation using a labelled $VNTR$ probe.
$C$. Transferring of separated $DNA$ fragments to synthetic membranes.
$D$. Detection of hybridised $DNA$ fragments by autoradiography.
$E$. Separation of $DNA$ fragments by electrophoresis.
Choose the correct answer from the options given below:

The technique of transferring $DNA$ fragments separated by agarose gel electrophoresis onto a synthetic membrane like nitrocellulose is known as:

One of the most frequently used techniques in $DNA$ fingerprinting is