Hello Rohan Kumar,

DNA fingerprinting a technique used especially for identification (as for forensic purposes) by extracting and identifying the base-pair pattern of an individual's DNA . — called also DNA typing, genetic fingerprinting .

The procedure for creating a DNA fingerprint consists of first obtaining a sample of cells, such as skin, hair, or blood cells, which contain DNA . ... DNA is extracted, treated with restriction enzymes, and sequenced using gel electrophoresis to create a genetic fingerprint Encyclopædia Britannica, Inc.

Thanku.