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Information content and one point mutations in DNA.

B R Sitaram, V S Varma

    Journal of Theoretical Biology
    |October 21, 1984
    PubMed
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    Human hemoglobin mutation data does not support the hypothesis of evolution towards increased DNA informational entropy. Instead, the data is consistent with random DNA base mutations.

    Area of Science:

    • Molecular Biology
    • Evolutionary Biology
    • Genetics

    Background:

    • Recent hypotheses suggest human hemoglobin mutation data aligns with evolution towards increased DNA informational entropy.
    • This hypothesis posits a directional trend in evolutionary processes driven by informational changes.

    Purpose of the Study:

    • To evaluate the consistency of human hemoglobin mutation data with the hypothesis of increasing DNA informational entropy.
    • To propose an alternative explanation for the observed mutation data.

    Main Methods:

    • Analysis of existing human hemoglobin mutation datasets.
    • Comparative assessment of data against the informational entropy hypothesis and random mutation models.

    Main Results:

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  • The analyzed mutation data does not provide evidence supporting the hypothesis of evolution in the direction of increasing informational entropy of DNA.
  • The data is fully explicable by the established mechanism of random mutation at DNA bases.

    • Conclusions:

    • The hypothesis linking human hemoglobin mutations to increasing DNA informational entropy is not supported by current data.
    • Random mutation of DNA bases provides a sufficient and consistent explanation for the observed mutation patterns.