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Context-Free Recombinations

In: Where Mathematics, Computer Science, Linguistics and Biology Meet

Author

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  • Jarkko Kari

    (University of Iowa, Department of Computer Science 15 MLH)

  • Lila Kari

    (University of Western Ontario, Department of Computer Science)

Abstract

We address the issue of the computational power of a formal model ([3], [6]) for the guided homologous recombinations that take place during gene rearrangement in ciliates. Results in [7], [5] have shown that a generalization of this model that assumes context-controlled recombinations has universal computational power. Complementing results in [4], [11], [12], [15], we study properties of context-free recombinations and characterize the languages generated by context-free recombination systems. As a corollary, we obtain context-free recombinations which are computationally weak, being able to generate only regular languages. This is one more indicator that, most probably, the presence of direct repeats does not provide all the information needed for accurate splicing during gene rearrangement.

Suggested Citation

  • Jarkko Kari & Lila Kari, 2001. "Context-Free Recombinations," Springer Books, in: Carlos Martín-Vide & Victor Mitrana (ed.), Where Mathematics, Computer Science, Linguistics and Biology Meet, chapter 0, pages 361-375, Springer.
    • Handle: RePEc:spr:sprchp:978-94-015-9634-3_32
    DOI: 10.1007/978-94-015-9634-3_32
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