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[Lip prints--variability and genetics (author's transl)].

L Hirth, H Göttsche, H W Goedde

    Humangenetik
    |October 20, 1975
    PubMed
    Summary
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    Lip prints exhibit stable, genetically determined ridge patterns, unaffected by environmental factors. This cheiloscopy research confirms a hereditary basis for unique lip print characteristics.

    Area of Science:

    • Forensic Science
    • Human Genetics
    • Dermatoglyphics

    Context:

    • Investigated variability and genetic basis of lip prints in 500 individuals.
    • Included 76 families, 133 children, and 39 twin pairs (22 monozygotic, 17 dizygotic).
    • Analyzed ridge patterns on the mucous membrane of the lips.

    Purpose:

    • To study the variability and genetic basis of lip print ridge patterns.
    • To assess the stability of lip prints against environmental influences.
    • To explore the application of cheiloscopy in genetic investigations.

    Summary:

    • Observed distinct lip print patterns: branched patterns more frequent on the upper lip, simple patterns on the lower lip.
    • Identified whirling figures in approximately 30% of lip prints, with specific locations on upper and lower lips.

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  • Demonstrated stability of lip prints over several months, indicating resistance to environmental factors.

    • Impact:

    • Confirmed a genetic basis for lip print characteristics through twin, family, and child-parent studies.
    • Established cheiloscopy as a viable method for genetic research.
    • Highlights the potential of lip print analysis in forensic and genetic identification.