Furthermore, the effects of random chance in small populations creates an effect called genetic drift , which can interfere with the expected operation of natural selection. However, one long-standing theory just became way more credible. A subtle twist on the indirect fitness idea that I haven't seen in the scientific literature could be to consider not the fitness of gay men and lesbians, but their mothers. Being blind to The Brigade?
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I would be lying if I said I was not in it for the prize. A linkage between DNA markers on the X chromosome and male sexual orientation. By this point I was a young teenager, certain I was gay and, quite honestly, not feeling all that great about it. It has long been thought that something must happen inside the womb the first time a woman carries a male fetus that ultimately affects the development of subsequent male fetuses. Evolution's Rainbow.
How 'Big Brother' Brought Queer Culture To The Nation's Living Rooms
Natalie Martinez. Bailey, N. Entertainment, charisma, positivity, motivation. Significant results were only found for one of the two proteins: Specifically, mothers of gay sons had higher levels of antibodies against NLGN4Y compared to mothers from both of the control groups this included women with heterosexual sons and women without any sons.
This randomized mating allows for drift to occur--everyone who survives to mate has an equal chance to mate, but some are randomly paired more than once, and some miss out. Read More Big Brother Series One objection you might make to this study is that it addresses our current societal context, not that in which humans originally evolved. Derrick Levasseur.