DNA evolution and successive file editions

Gilney F. Zebende, Thadeu J.P. Penna and Paulo Murilo C.de Oliveira

Physica A: Statistical Mechanics and its Applications, 1998, vol. 257, issue 1, 136-140

Abstract: Sequences of nucleotides along DNA chains are known to present long range correlations. These correlations are small for simple species (algae) and increase for more complex ones. Scanning DNA chains one finds pieces called exons which are known to code some protein sequence, and others called introns whose usefulness is debatable and do not code protein sequences. By reading only exons (skipping introns), one always gets no correlation at all, in spite of observing a large correlation by reading the whole DNA sequence. The proposed explanation is that introns are fossil DNA parts no longer in use after evolutional replacement by new, better material (current exons).

Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:257:y:1998:i:1:p:136-140

DOI: 10.1016/S0378-4371(98)00135-6

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