Review

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Abstract
Most eukaryotic genomes are characterized by excessively large amounts of non-coding DNA sequences among which redundant (repetitive) elements constitute a sizable portion. The functional role of an abundant subclass of repetitive sequences--simple, tandemly arranged repeats--remained mysterious so far. Even the biological meaning of most of these elements appears quite refractory to present-day techniques in molecular genetics. Notwithstanding simple repetitive sequences have been developed into superb tools for various aspects of eukaryotic genome research: Using oligonucleotide probes carrying simple repeat motifs multilocus DNA fingerprinting can be applied for individual identification and genetic relationship analyses in plants, animals and humans. Microsatellite analyses via polymerase chain reaction of simple repeat blocks allow for efficient investigations of such divers subject matters as criminal stains, detailed genome maps and indirect gene diagnoses.
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