Question

Is the whole genome used for dna fingerprinting or only vntr''s after density gradient centrifugation?

Answer 1

VNTR'S after density gradient centrifugation.

DNA fingerprinting is called by different names like DNA profiling, DNA testing, DNA typing.

Though 99.9% of human DNA sequences are the same in every person, there are particular sequences called as VNTRs which are unique to every person.

Variable Number of Tandem Repeat (VNTR) loci are the chromosomal locations in which a short DNA sequence is repeated a variable number of times. This is also called as tandem repeat.

VNTRs serve as an important source of RFLP genetic markers which are in turn used for linkage analysis of genomes. VNTRs produce a pattern of bands unique to each individual.



*DNA fingerprinting is used to identify criminals related to forensic department.
*It is also used to diagnose inherited disorders in prenatal and newborn babies.
*It is used to settle down paternity disputes.
*Individual persons like soldiers can be identified by DNA fingerprinting.