Significance of repetitive and non repetitive sequences
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Repeated sequences (also known as repetitive elements,repeating units or repeats) are patterns of nucleic acids (DNA or RNA) that occur in multiple copies throughout the genome. Repetitive DNA was first detected because of its rapid re-association kinetics. In many organisms, a significant fraction of the genomic DNA is highly repetitive, with over two-thirds of the sequence consisting of repetitive elements in humans.[1]
Repetitive elements found in genomes fall into different classes, depending on their structure and/or the mode of multiplication. The disposition of repetitive elements consists either in arrays of tandemly repeated sequences, or in repeats dispersed throughout the genome
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