What is it that forms the basis of DNA fingerprinting?

The relative proportions of purines and pyrimidines in DNA

The relative difference in the DNA occurrence in blood, skin and saliva

The relative amount of DNA in the ridges and grooves of the fingerprints

Satellite DNA occuring as hightly repeated short DNA segments

Solution

Satellite DNA occuring as hightly repeated short DNA segments

DNA fingerprint is individual-specific DNA identification which is made possible by the finding that no two people are likely to have the same of copies of repetitive DNA sequences of regions. The chromosomes of every human cells contains short, highly repeated DNA sequence (15 nucleotide) called minisatelite scattered throughout.