Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Disorder and Power-law Tails of DNA Sequence Self-Alignment
  Concentrations in Molecular Evolution   The self-alignment concentrations, $c(x)$, as functions of the length, $x$,
of the identically matching maximal segments in the genomes of a variety of
species, typically present power-law tails extending to the largest scales,
i.e., $c(x) \propto x^{\alpha}$, with similar or apparently different negative
$\alpha$s ($<-2$). The relevant fundamental processes of molecular evolution
are segmental duplication and point mutation, and that recently the stick
fragmentation phenomenology has been used to account the neutral evolution.
However, disorder is intrinsic to the evolution system and, by freezing it in
time (quenching) for the setup of a simple fragmentation model, we obtain
decaying, steady-state and the general full time-dependent solutions, all
$\propto x^{\alpha}$ for $x\to \infty$, which is in contrast to the only
power-law solution, $x^{-3}$ for $x\to 0$ of the pure model (without disorder).
%Other algebraic terms may dominate at intermediate scales, which seems to be
confirmed by some species, such as rice. We also present self-alignment results
showing more than one scaling regimes, consistent with the theoretical results
of the existence of more than one algebraic terms which dominate at different
regimes.

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The categories of this paper are: mtrl-th
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The categories of this paper are: gr-qc
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The categories of this paper are: adap-org
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ex
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: q-alg
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The categories of this paper are: hep-th
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The categories of this paper are: astro-ph
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The categories of this paper are: eess
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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: supr-con