Showing posts with label science. Show all posts
Showing posts with label science. Show all posts
Saturday, February 2, 2013
Science or Pseudo-Science?
While female sexuality appears to be more fluid, research suggests that male gayness is an inborn, unalterable, strongly genetically influenced trait. But considering that the trait discourages the type of sex that leads to procreation — that is, sex with women — and would therefore seem to thwart its own chances of being genetically passed on to the next generation, why are there gay men at all?
Put differently, why haven't gay man genes driven themselves extinct?
This longstanding question is finally being answered by new and ongoing research. For several years, studies led by Andrea Camperio Ciani at the University of Padova in Italy and others have found that mothers and maternal aunts of gay men tend to have significantly more offspring than the maternal relatives of straight men. The results show strong support for the "balancing selection hypothesis," which is fast becoming the accepted theory of the genetic basis of male homosexuality.
The theory holds that the same genetic factors that induce gayness in males also promote fecundity (high reproductive success) in those males' female maternal relatives. Through this trade-off, the maternal relatives' "gay man genes," though they aren't expressed as such, tend to get passed to future generations in spite of their tendency to make their male inheritors gay.
Labels:
balancing selection hypothesis,
gay,
gay man genes,
gayness,
genes,
Genetics,
homosexuality,
research,
science,
sex,
theory
Friday, July 13, 2012
Why Are There Gay Men
| Get Religion |
While female sexuality appears to be more fluid, research suggests that male gayness is an inborn, unalterable, strongly genetically influenced trait. But considering that the trait discourages the type of sex that leads to procreation — that is, sex with women — and would therefore seem to thwart its own chances of being genetically passed on to the next generation, why are there gay men at all?
Put differently, why haven't gay man genes driven themselves extinct?
This longstanding question is finally being answered by new and ongoing research. For several years, studies led by Andrea Camperio Ciani at the University of Padova in Italy and others have found that mothers and maternal aunts of gay men tend to have significantly more offspring than the maternal relatives of straight men. The results show strong support for the "balancing selection hypothesis," which is fast becoming the accepted theory of the genetic basis of male homosexuality. The theory holds that the same genetic factors that induce gayness in males also promote fecundity (high reproductive success) in those males' female maternal relatives. Through this trade-off, the maternal relatives' "gay man genes," though they aren't expressed as such, tend to get passed to future generations in spite of their tendency to make their male inheritors gay.
from Life's Little Mysteries
Monday, June 4, 2012
Gay + Radar = Gaydar
And so, finally, the urban myth is true. The science article says 60% accuracy rate. That spider-sense among the likes and un-likes must be an evolutionary upgrade in our psychological arsenals. Can anyone tell me the name of that mutant who can sense other mutants?
Let's begin with working definitions. We don't have to agree with this on all points or even on many angles, but we have to start somewhere, right?
"Gaydar (a portmanteau of gay and radar) is a colloquialism referring to the intuitive ability of a person to assess others' sexual orientations as gay, bisexual, or straight. Gaydar relies almost exclusively on non-verbal clues and LGBT stereotypes. These include (but are not limited to) the sensitivity to social behaviors and mannerisms; for instance, acknowledging flamboyant body language, the tone of voice used by a person when speaking, overtly rejecting traditional gender roles, a person's occupation and grooming habits." (Wikipedia)
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| Sodahead |
Let's begin with working definitions. We don't have to agree with this on all points or even on many angles, but we have to start somewhere, right?
"Gaydar (a portmanteau of gay and radar) is a colloquialism referring to the intuitive ability of a person to assess others' sexual orientations as gay, bisexual, or straight. Gaydar relies almost exclusively on non-verbal clues and LGBT stereotypes. These include (but are not limited to) the sensitivity to social behaviors and mannerisms; for instance, acknowledging flamboyant body language, the tone of voice used by a person when speaking, overtly rejecting traditional gender roles, a person's occupation and grooming habits." (Wikipedia)
Labels:
gay rights,
Gaydar,
LGBTQ,
mythology,
pop culture,
pyschology,
queer,
research,
science,
urban myth
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