Do you believe that Y-DNA influences looks and behaviour?

Do you think that Y-chromosomal DNA has an influence on phenotype?

  • No, Y-DNA does not influence looks or behaviour at all

    Votes: 33 33.3%

  • Y-DNA might possibly have a minor influence on man's behaviour, but not on his physical appearance

    Votes: 7 7.1%

  • Y-DNA most probably influences a man's behaviour, but has no effect on physical appearance at all

    Votes: 1 1.0%

  • Y-DNA slightly influences a man's physical appearance, but not his behaviour

    Votes: 7 7.1%

  • Y-DNA considerably influences a man's physical appearance, but not his behaviour

    Votes: 1 1.0%

  • Y-DNA slightly influences a man's physical appearance and his behaviour

    Votes: 24 24.2%

  • Y-DNA considerably influences a man's physical appearance and his behaviour

    Votes: 11 11.1%

  • No idea !

    Votes: 15 15.2%
  • Total voters
    99
ElijahShell said:
By "Appearance influences" do most of you mean the structural change of the body due to the levels of testosterone production controlled by genes on the Y chromosome? Do you think the only correlation between the Y chromosome and physical appearance is the level of testosterone production in different haplogroups, such that higher level of T can make the person reach his full autosomal genetic potential limit for physical traits like height, muscle, jawshape, brain size, but the Y chromosome itself doesn't carry any genes to determine the maximum potential limit of those traits in a person?
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My grandfather was 5'10" my father short at the most 5'4". I am 6'1" and my son is 6'4"-6'5". We all have the same Y-DNA.
 
Also the only way it could possibly affect actual behaviour is if that man thought he was God's gift to humanity just because he had a particular Y-Dna haplogroup.
 
bigsnake49 said:
My grandfather was 5'10" my father short at the most 5'4". I am 6'1" and my son is 6'4"-6'5". We all have the same Y-DNA.
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That's to do with nutritional factors, Americans were 170-171cm on average 100 years ago, Europeans even shorter
 

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ElijahShell said:
By "Appearance influences" do most of you mean the structural change of the body due to the levels of testosterone production controlled by genes on the Y chromosome? Do you think the only correlation between the Y chromosome and physical appearance is the level of testosterone production in different haplogroups, such that higher level of T can make the person reach his full autosomal genetic potential limit for physical traits like height, muscle, jawshape, brain size, but the Y chromosome itself doesn't carry any genes to determine the maximum potential limit of those traits in a person?
Click to expand...

Not sure but south Slavs look a bit different (maybe due to high i2), Albanians look a bit different (maybe due to high e-v13), Scandinavians look a bit different (maybe due to high i1), east Slavs look a bit different (maybe due to high r1a) etc. Maybe ydna has a bigger effect on appearance when multiple family members carry the same line, maybe also applies to mtdna if you have many family members with the same mtdna line
 
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TaktikatEMalet said:
Not sure but south Slavs look a bit different (maybe due to high i2), Albanians look a bit different (maybe due to high e-v13), Scandinavians look a bit different (maybe due to high i1), east Slavs look a bit different (maybe due to high r1a) etc. Maybe ydna has a bigger effect on appearance when multiple family members carry the same line, maybe also applies to mtdna if you have many family members with the same mtdna line
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Is there any studies show that there are genes on the Y chromosome with the function to determine the maximum growth potential limit of height, frame, jaw, muscle, and brain in a person?
 
Y DNA might have an influence on the appearance on a population basis but on an individual family line basis. For example my sisters tell me they can recognize Albanians from a mile away.
 
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There's a difference between a Y-DNA haplogroup and the Y-chromosome here, the former is only a part of the latter. The latter also has a small recombining region and the SRY gene, but mostly non-coding regions that don't really affect much if anything. If there's any effect from the haplogroups on looks, which in itself is doubtful, its influence would be quite minimal.
 
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