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Author Topic:   Homosexuality Can Be Genetically Turned On & Off
bluegenes
Member (Idle past 2498 days)
Posts: 3119
From: U.K.
Joined: 01-24-2007


Message 16 of 20 (439992)
12-11-2007 6:49 AM
Reply to: Message 1 by molbiogirl
12-10-2007 6:58 PM


molbiogirl writes:
It seems they found a "genderblind" (GB) mutation. Males carrying GB were attracted to males; females, females.
"Genderblind" means the flies were bi-sexual, and would attempt to mate with both sexes indiscriminately.
This may not have much to do with human sexuality, because, whether heterosexual, homosexual or bi-sexual, we are never literally gender blind, and seem to have enormous variety of tastes within those three categories.
I'm probably stating the obvious, but I think that human sexuality will turn out to be much more complex than that of the flies, and will involve complex combinations of genes and other factors.
As for the "gay is a choice" thing, we don't actually need biology to know that that's not true, because we all know from experience that we don't choose our sexuality.
Interestingly, the people pushing the "gay is a choice" idea must, by definition, be either consciously bi-sexual, or consciously gay and pretending to be straight.
No heterosexual would regard being or not being homosexual as a choice they've ever made, obviously.

This message is a reply to:
 Message 1 by molbiogirl, posted 12-10-2007 6:58 PM molbiogirl has replied

Replies to this message:
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molbiogirl
Member (Idle past 2662 days)
Posts: 1909
From: MO
Joined: 06-06-2007


Message 17 of 20 (440001)
12-11-2007 7:24 AM
Reply to: Message 16 by bluegenes
12-11-2007 6:49 AM


My bad. I did a pisspoor job explaining.
From the paper:
Genderblind (gb) mutant males showed no alteration in heterosexual courtship or copulation, but were attracted to normally unappealing male species-specific chemosensory cues. As a result, genderblind mutant males courted and attempted to copulate with other Drosophila males. This homosexual behavior could be induced within hours using inducible RNAi, suggesting that genderblind controls nervous system function rather than its development.
I'm probably stating the obvious, but I think that human sexuality will turn out to be much more complex than that of the flies, and will involve complex combinations of genes and other factors.
I have 2 finals today, so I haven't time right now to answer this in full.
I agree that tracking down the genetic influences will be backbreaking work ... and that the system will be more complex than an on/off switch.
But, as I pointed out earlier, we already have evidence that gay men respond differently the pheromones.
This aspect of sexuality seems analogous in Drosophila and human.
More this evening.

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macaroniandcheese 
Suspended Member (Idle past 3948 days)
Posts: 4258
Joined: 05-24-2004


Message 18 of 20 (440039)
12-11-2007 10:02 AM
Reply to: Message 2 by jar
12-10-2007 7:14 PM


Re: Hallelujah Brothers and Sisters
that's what i was going to say. you have the choice to do gene therapy and cure yourselves. see? god is behind all technology and someday we will be advanced enough to see the bible is all true.
or something.

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macaroniandcheese 
Suspended Member (Idle past 3948 days)
Posts: 4258
Joined: 05-24-2004


Message 19 of 20 (440040)
12-11-2007 10:03 AM
Reply to: Message 3 by Taz
12-10-2007 7:14 PM


of course heterosexuality is a choice. the right (tm) choice.

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macaroniandcheese 
Suspended Member (Idle past 3948 days)
Posts: 4258
Joined: 05-24-2004


Message 20 of 20 (440042)
12-11-2007 10:07 AM
Reply to: Message 7 by molbiogirl
12-10-2007 10:06 PM


And there is research that shows gay men respond differently to pheromones.
so we do have pheromones now? oy.
Humans have an arguably better ability to analyze and change their own behavior than fruit flies.
Really.
So you could choose to be gay if you wished?
Your attraction to the opposite sex is that pliable?
he isn't referring to the attraction; he's referring to the behavior. a gay or straight person chooses whether or not to have sex. it doesn't happen by accident. they can just as easily choose not to have sex with someone. attraction has nothing to do with it.
lots of animals are polyamorous. some people claim to be. i choose to be in a monogamous relationship. i choose not to have sex with anyone but my intended, regardless of attraction.
Edited by brennakimi, : No reason given.

This message is a reply to:
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