Comments on: Genetic effects of gender atypical behavior and sexual orientation: A study of Finnish twins https://wthrockmorton.com/2009/05/20/genetic-effects-of-gender-atypical-behavior-and-sexual-orientation-a-study-of-finnish-twins/ A [retired] college psychology professor's observations about public policy, mental health, sexual identity, and religious issues Wed, 03 Jun 2009 14:52:52 +0000 hourly 1 https://wordpress.org/?v=6.8.3 By: William https://wthrockmorton.com/2009/05/20/genetic-effects-of-gender-atypical-behavior-and-sexual-orientation-a-study-of-finnish-twins/#comment-28019 Wed, 03 Jun 2009 14:52:52 +0000 https://www.wthrockmorton.com/?p=3970#comment-28019

Identical twins share the same genes while fraternal twins do not.

Sorry if I’m throwing a spanner in the works, but has it not now been established that identical twins don’t, as was previously and more or less universally assumed, have absolutely identical genes?
http://www.sciencedaily.com/releases/2008/02/080215121214.htm

]]> By: Ann https://wthrockmorton.com/2009/05/20/genetic-effects-of-gender-atypical-behavior-and-sexual-orientation-a-study-of-finnish-twins/#comment-28018 Fri, 22 May 2009 15:16:37 +0000 https://www.wthrockmorton.com/?p=3970#comment-28018 B.T. Carolus,
Very funny!

]]> By: Drowssap https://wthrockmorton.com/2009/05/20/genetic-effects-of-gender-atypical-behavior-and-sexual-orientation-a-study-of-finnish-twins/#comment-28017 Fri, 22 May 2009 13:48:42 +0000 https://www.wthrockmorton.com/?p=3970#comment-28017 B.T.Carolus
HAHAHA! I love that comic.
You are right and I do understand that studies need to be repeated. But at this point I think everyone gets it. SSA is part genetic and part environment.
This puts it in the same category as virtually every other phenomenon that mankind has discovered.

]]> By: B.T.Carolus https://wthrockmorton.com/2009/05/20/genetic-effects-of-gender-atypical-behavior-and-sexual-orientation-a-study-of-finnish-twins/#comment-28016 Fri, 22 May 2009 05:11:58 +0000 https://www.wthrockmorton.com/?p=3970#comment-28016 Drowssap:
Technically, the scientific method demands repetition of the experiment in order to confirm results. Although I do agree with you that sometimes this becomes overkill. And there are pieces of this particular study that I just don’t find convincing (and I don’t just mean the idea that 3,600 Finnish twins can/should be generalized to the world’s population).
At risk of becoming the comic depositor:
http://xkcd.com/242/

]]> By: Drowssap https://wthrockmorton.com/2009/05/20/genetic-effects-of-gender-atypical-behavior-and-sexual-orientation-a-study-of-finnish-twins/#comment-28015 Thu, 21 May 2009 14:44:41 +0000 https://www.wthrockmorton.com/?p=3970#comment-28015 This is the part I don’t understand.
We know from a dozen other studies that SSA is part genetic and part environment.
So if we already know the answer why do scientists keep running the same study over and over again? Does it really matter if SSA is 2% heritable or 22% heritable or 42% heritable? Does the difference mean anything? What if a future study finds that SSA is 0% or 100% heritable? Scientists will dismiss that research because it doesn’t match the other studies. The entire exercise seems like it’s geared to find the same answer over and over again.
In any case Ulcers and many other non-genetic phenomenon show “heritability”.
Here is a study on genetics and peptic ulcers. In case you didn’t know peptic ulcers are caused by bacteria and yes human genes also play an important role. Which phenomenon don’t have a genetic and environmental component? I can’t think of many.
It’s as if scientists ran a study each morning to determine if the sun was going to come up.

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