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Thread: Automsomal DNA and Physical Appearance19 days old

  1. #1
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    Default Automsomal DNA and Physical Appearance

    Does anyone know how the physical appearance of a population is influenced by genetics and how it relates to subrace?

    For example, if a population is 8 - 10 % autosomally, would this influence their appearance to a great extent? In other words, would they look very different without this admixture?

    And how does this correspond to subrace in anthropology? Many of the anthropologists seemed to suggest that Northeastern Europe was heavily influenced by Lappoid admixture but how is this possible when autosomally nearly all populations there are overwhelmingly European? And how can the East Baltid type be influenced by Asian DNA?

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    Quote Originally Posted by Learning_Genetics View Post
    Does anyone know how the physical appearance of a population is influenced by genetics and how it relates to subrace?

    For example, if a population is 8 - 10 % autosomally, would this influence their appearance to a great extent? In other words, would they look very different without this admixture?

    And how does this correspond to subrace in anthropology? Many of the anthropologists seemed to suggest that Northeastern Europe was heavily influenced by Lappoid admixture but how is this possible when autosomally nearly all populations there are overwhelmingly European? And how can the East Baltid type be influenced by Asian DNA?
    As far as I am concerned I believe 19th century etc... physical anthropological classifications are obsolete at best and pseudo-science at worst. For instance, take an Atlanto-med from Britain (a minority element there) and take an Atlanto-med from Spain then plot them on a PCA chart-- they are not going to cluster together. This means either that it is totally bullshit or the mathematical percentage of genes that code for such phenotypes are insignificantly small. I mean what good are such classifications if they don't all cluster together via modern genetics ? I think most anthropologists and geneticists will tell you something similar to what I did : it is obsolete or pseudo-science.
    Last edited by Pendragon1; 2017-10-02 at 22:36.

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    It is completely individual. Even sibling by sibling.

    For example, I am ~77% West & Central African, ~13% Northwest Euro and ~10% Amerind. I'd say I look about those numbers, but someone with my same ancestry could look entirely native to Nigeria or Cameroon (for example), they could be much lighter or darker skinned than I am, slightly different hair texture, etc...
    Last edited by pgbk87; 2017-10-02 at 22:46.
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    These are pictures of my wife and I from a few years back:
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    Quote Originally Posted by pgbk87 View Post
    It is completely individual. Even sibling by sibling.

    For example, I am ~77% West & Central African, ~13% Northwest Euro and ~10% Amerind. I'd say I look about those numbers, but someone with my same ancestry could look entirely native to Nigeria or Cameroon (for example), they could be much lighter or darker skinned than I am, slightly different hair texture, etc...
    Cosign with this. You can see this with my 23andMe results, which reflect more the appearance of my brothers more than my very own.

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    Quote Originally Posted by El Andullero View Post
    Cosign with this. You can see this with my 23andMe results, which reflect more the appearance of my brothers more than my very own.
    Just to make my point, here's my results thread: El Andullero's 23andMe results

    And here are my bros:

    Oldest one:




    Youngest one:


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    And does anyone know if certain genes can effect the way other genes express themselvs and therefore influence the phenotype in that way? For example, 8-10 % Asian admixture is not a large amount, but could it possibly influence the way the rest of the overwhelmignly European genes express themselves and therefore influence phenotype in that way?

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    Quote Originally Posted by pgbk87 View Post
    It is completely individual. Even sibling by sibling.

    For example, I am ~77% West & Central African, ~13% Northwest Euro and ~10% Amerind. I'd say I look about those numbers, but someone with my same ancestry could look entirely native to Nigeria or Cameroon (for example), they could be much lighter or darker skinned than I am, slightly different hair texture, etc...
    Phenotype ≠ Genotype

    For instance, an East African and a West African look similar to each other, but would contain a wide diversity of genetic difference. Yet most would simply label them as "Black".

    The fact that some populations have mutations for blue eyes or blond hair may make them look drastically different to the human eye, but would only account for a minor change in DNA expression.

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