Easter Islander palmar dermatoglyphics: sexual dimorphism, bilateral asymmetry, and family polymorphism

American Journal of Physical Anthropology
C Sorenson Goodson, R J Meier


The palmar prints of 297 male and female Easter Islanders were analyzed according to the Penrose and Loesch topological classification system. While the frequencies of most pattern elements were not found to differ significantly between the sexes, the placement of the axial triradius was found to be highly significant (P less than 0.01). Both males and females were found to exhibit considerable bilateral asymmetry in the a-b count and in the atd angle, but there was no significant difference between the sexes in the amount of asymmetry expressed. Family data for a small subset of the sample (51 individuals) were subjected to further statistical analysis, from which significant results (P less than 0.05) were obtained both on chi-square tests for frequency of pattern elements and ANOVA tests for a-b counts, atd angle, and A-line exit. The implications of these results are considered from a developmental perspective. It is suggested that a particular pattern combination (termed a formula) could be used to represent a default value and that other formulae might then be considered as deviations from this default value. Such variation, theoretically at least, might be traced to genetic influences or to the embryological environment ...Continue Reading


Jan 1, 1977·American Journal of Physical Anthropology·R L Jantz
Jul 1, 1977·Annals of Human Biology·R L Jantz, D W Owsley
Mar 1, 1975·American Journal of Physical Anthropology·R L Jantz
Oct 1, 1969·The Journal of Pediatrics·J J Mulvihill, D W Smith
Sep 1, 1973·Journal of Medical Genetics·L S Penrose, P T Ohara
Jan 1, 1970·Human Heredity·S Singh
Feb 1, 1971·Annals of Human Genetics·D Loesch
May 1, 1983·American Journal of Physical Anthropology·D Loesch
Sep 1, 1980·Annals of Human Biology·R L Jantz, R S Webb
Jul 1, 1952·The American Journal of Anatomy·A R HALE
Jan 1, 1957·The Journal of Pediatrics·N F WALKER
Nov 1, 1962·Annals of Human Genetics·J D MAVALWALA
Feb 1, 1965·Human Biology·M WENINGER


Sep 18, 2012·Homo : internationale Zeitschrift für die vergleichende Forschung am Menschen·W Buchwald, B Grubska
Oct 1, 1986·American Journal of Physical Anthropology·C S Goodson, R J Meier
Oct 1, 1990·American Journal of Physical Anthropology·C Singh, K B McKnight

Related Concepts

Plantar Prints
Genetic Polymorphism

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Neural Activity: Imaging

Imaging of neural activity in vivo has developed rapidly recently with the advancement of fluorescence microscopy, including new applications using miniaturized microscopes (miniscopes). This feed follows the progress in this growing field.

The Tendon Seed Network

Tendons are rich in the extracellular matrix and are abundant throughout the body providing essential roles including structure and mobility. The transcriptome of tendons is being compiled to understand the micro-anatomical functioning of tendons. Discover the latest research pertaining to the Tendon Seed Network here.

Myocardial Stunning

Myocardial stunning is a mechanical dysfunction that persists after reperfusion of previously ischemic tissue in the absence of irreversible damage including myocardial necrosis. Here is the latest research.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.


Incretins are metabolic hormones that stimulate a decrease in glucose levels in the blood and they have been implicated in glycemic regulation in the remission phase of type 1 diabetes. Here is the latest research.

Chromatin Regulation and Circadian Clocks

The circadian clock plays an important role in regulating transcriptional dynamics through changes in chromatin folding and remodelling. Discover the latest research on Chromatin Regulation and Circadian Clocks here.

Long COVID-19

“Long Covid-19” describes illness in patients who are reporting long-lasting effects of the SARS-CoV-19 infection, often long after they have recovered from acute Covid-19. Ongoing health issues often reported include low exercise tolerance and breathing difficulties, chronic tiredness, and mental health problems such as post-traumatic stress disorder and depression. This feed follows the latest research into Long Covid.

Spatio-Temporal Regulation of DNA Repair

DNA repair is a complex process regulated by several different classes of enzymes, including ligases, endonucleases, and polymerases. This feed focuses on the spatial and temporal regulation that accompanies DNA damage signaling and repair enzymes and processes.