In other exciting science news, genetic manipulation can turn fruit flies gay:
New research has shown that the manipulation of a single gene in female fruit flies can make their sexual behavior resemble that of males, in a study that demonstrates the power of individual genes and the profound impact of genetics on complex sexual behavior.
The research was done with the gene "fruitless," which is present in both male and female fruit flies and some other insect species. Ordinarily, only in males does this gene result in the creation of proteins that guide male sexual behavior patterns – such as approaching females, tapping them, singing to them and performing little courtship dances.
However, through genetic manipulations the research group of university scientists was able to cause these same proteins to be produced in females, and when they were, the females showed classic patterns of male sexual behavior.
"When this genetic process was triggered in females, they acted as if they were masculinized," said Barbara Taylor, a professor of zoology at OSU. "And this was a single gene expressed in just a very small number of cells, controlling a surprisingly complex behavior. In a physical sense the females looked perfectly normal, but they acted like males and, if they were physically able to, I would not be surprised if they would have attempted to mate other females."