Is There a Possibility of a "Gay Gene"?

I found a pretty crazy article titled "Scientists Make Fruit Flies Gay, Then Straight Again", and it's actually a really interesting read! Here's an excerpt from it:

"While several studies find homosexuality in humans and other animals is biological rather than learned, a question remains over whether it's a hard-wired phenomenon or one that can be altered.

A new study finds that both drugs and genetic manipulation can turn the homosexual behavior of fruit flies on and off within a matter of hours." Check out the Article at Fox News