genomic duplication

Virus-driven mutation or amino acid substitution

A computer program just ranked the most influential brain scientists of the modern era Excerpt: “My first thought was, ‘Who could I tell without appearing immodest?’” he said. “I then realized the only people who would want to hear about this are my children!” My comment: Oxytocin-related peptides are 9-13 amino acids long, but they can be recognized in genomic sequences. That allows them to be placed into the context of claims that link the nutrient energy-dependent de novo creation…

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Polycombic ecological adaptation as a science, not a theory (2)

Evolutionary Constraints in the β-Globin Cluster: The Signature of Purifying Selection at the δ-Globin (HBD) Locus and Its Role in Developmental Gene Regulation Conclusion: … the results here presented indicate that purifying selection is driving not only HBD evolution but also its neighbor pseudogene, HBBP1. In the light of recent advances in the characterization of the β-globin cluster, we propose that the complex patterns of diversity observed in this genomic region arose from distinct functional constraints related with the intricate…

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Biophotonics, glycobiology, quantized biodiversity (2)

From Fertilization to Adult Sexual Behavior (1996) In our section on Molecular epigenetics, we wrote: Small intranuclear proteins also participate in generating alternative splicing techniques of pre-mRNA and, by this mechanism, contribute to sexual differentiation in at least two species, Drosophila melanogaster and Caenorhabditis elegans (Adler and Hajduk, 1994; de Bono, Zarkower, and Hodgkin, 1995; Ge, Zuo, and Manley, 1991; Green, 1991; Parkhurst and Meneely, 1994; Wilkins, 1995; Wolfner, 1988). That similar proteins perform functions in humans suggests the possibility…

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Energy-dependent RNA methylation (8)

Multiplexing Genetic and Nucleosome Positioning Codes: A Computational Approach Mutation Monte Carlo method (MMC): Excerpt: The mutation moves change the bp sequence but keep the DNA configuration fixed. Both moves change the energy, Eq (1), of the two bp steps involved. My comment: Moves that change energy cost energy. Attributing energy-dependent changes in base pairs to mutations without linking them to the source of the energy change is a neo-Darwinian trick. Nucleosome-amino acid correlation analysis: Excerpt: This produces occurrence probabilities…

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  • Randomness and Divine Providence
    A Q&A on randomness and God’s providence …the main goal is to really put together a collection of scholarly studies of these issues: physicists, biologists, […]