Contents:
- GAY FLI LOSE THEIR NERVE
- GAY FLI TURNED ON BY HEAT
- GENE LOSS MAK GAY MALE FLI HOMOSEXUAL
- GAY FLI LOSE THEIR NERVE
- FFLI TAP TO THEIR GAY SI
- GAY FLI
GAY FLI LOSE THEIR NERVE
Cred: © GettyRearchers have fally pned down a physil difference between male fli that are engeered to behave homosexually and those that are not: the tweaked variety is missg a small clter of nerve cells the bra. Geilly altered fli that are signed to urt members of their own sex, or no one at all, have ma headl recent months (see 'Ffli tap to their gay si ').
"No homologue of the uls gene is found mammals and humans, " pots out Ken-Ichi Kimura of the Hokkaido Universy of Edutn Iwamizawa, Japan.
GAY FLI TURNED ON BY HEAT
Further vtigatn revealed that the F prote keeps the cells alive durg the early velopment of Japane team show that homosexual femal signed to produce the F prote velop an tact nerve-cell clter. Rearchers have fally pned down a physil difference between male fli that are engeered to behave homosexually and those that are not: the tweaked variety is missg a small clter of nerve cells the bra.
Geilly altered fli that are signed to urt members of their own sex, or no one at all, have ma headl recent months (see ' Ffli tap to their gay si '). "No homologue of the uls gene is found mammals and humans, " pots out Ken-Ichi Kimura of the Hokkaido Universy of Edutn Iwamizawa, such work do help rearchers to work out the plex geic and environmental factors that help animals to choose their mat.
There is no reason to thk siar featur will not be prent mammals, he says, notg that homosexual behavr is wispread among many animal speci and suggts a strong geic fluence. Hamer’s team has published two highly publicised studi suggtg there is a “gay gene” on human chromosome X, though a different group failed to reproduce their rults.
GENE LOSS MAK GAY MALE FLI HOMOSEXUAL
While several studi fd homosexualy humans and other animals is blogil rather than learned, a qutn remas over whether 's a hard-wired phenomenon or one that n be altered. A new study fds dgs or geic manipulatn n turn the homosexual behavr of u fli on and off wh a matter of hours.
While the geic fdg supports the thkg that homosexualy is hard-wired, the dg fdg surprisgly suggts 's not that fact, homosexualy the u fli seems to be regulated by how they terpret the scent of another. Dramatic rultHomosexualy is wispread the animal world. But scientists have long bated whether, humans a "gay gene" exists.
GAY FLI LOSE THEIR NERVE
"Based on our prev work, we reasoned that GB mutants might show homosexual behavr bee their glutamatergic synaps were altered some way, " Featherstone said. "Homosexual urtship might be sort of an 'overreactn' to sexual stimuli. As predicted, they were able to turn fly homosexualy on and off, wh hours.
"Sense of smellThe team figured fly bras mata two sensory circus: one to trigger heterosexual behavr and one for homosexual.
When GB supprs glutamatergic synaps, the homosexual circu is blocked, the thkg they did more tts. A study 2005 found that when smellg a chemil om ttosterone, portns of the human bras active sexual activy were turned on gay men and straight women, but not straight at least among u fli, "pheromon are powerful sexual stimuli, " Featherstone said. "The rearch was published onle today by the journal Nature AnimalsGay Men Rpond Differently to PheromonTop 10 Swgers of the Animal Kgdom.
FFLI TAP TO THEIR GAY SI
Shockg fdgs: 94% of giraff are studied for homosexual relatnships. Male sparrows also play gay. Homosexual terurse u fli.
LiveScience reports: “‘Based on our prev work, we reasoned that GB mutants might show homosexual behavr bee their glutamatergic synaps were altered some way, ’ Featherstone said. ‘Homosexual urtship might be sort of an ‘overreactn’ to sexual stimuli.
’ The team figured fly bras mata two sensory circus: one to trigger heterosexual behavr and one for homosexual. When GB supprs glutamatergic synaps, the homosexual circu is blocked, the thkg go. Once the pheromon were spread, the moths beme nfed and some were persuad to be gay.
GAY FLI
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While the blogil basis for homosexualy remas a mystery, a team of nroblogists reports they may have closed on an answer -- by a nose. Armed wh this knowledge, the rearchers found they were able to e eher geic manipulatn or dgs to turn the fli' homosexual behavr on and off wh hours. "Based on our prev work, we reasoned that GB mutants might show homosexual behavr bee their glutamatergic synaps were altered some way, " said Featherstone.
"Homosexual urtship might be sort of an 'overreactn' to sexual stimuli, " he explaed. As predicted, they were able to turn fly homosexualy on and off -- and wh hours. Featherstone and his lleagu reasoned that adult fly bras have dual-track sensory circus, one that triggers heterosexual behavr, the other homosexual.