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DNA Fingerprint Analysis - In genomic DNA of various species, minisatellite and microsatellite DNA sequences have been found to detect several loci consisting of tandem repeats of a short nucleotide sequence (10-60 base pairs).

Analysis of these sequences has yielded very high levels of polymorphism.

This is due to tandem repeats, presumably resulting from unequal mitotic or meiotic exchanges or by DNA slippage during replication. At a given locus, numerous alleles differing in number of repeats may thus occur.

Probes that hybridize to fragments from several variable loci simultaneously have been found, producing an auto radiograph with a complex pattern called a DNA fingerprint.

These fragments are inherited in a Mendelian fashion and therefore provide a technique suitable for genetic analysis.

DNA fingerprints are highly individual specific and are applicable in genetic variation studies, forensic and ecological studies, breeding programs, population genetics and in the analysis and characterization of genome and variety identification.