Well it would be interesting to see where our sexuality starts, if being straight or gay is a gene or something we subconsciously decide.
It looks like a dangerous path to go down though. Personally I could give a monkeys if someone is gay or straight, even my own child, but we do know there are still a lot of people out there that do have prejudice against gay people. It would be tragic that they could choose to abort a baby because of it's sexual preference :(
I'm on the fence with this one, can't decide between the scientific interest and moral side of it.