um, not true.
they mapped the entire human gene. you might be referring to the sequencing of the gene. They completed 95% of the genetic sequence to 99.99% accuracy in 2003, but the mapping and identification of the genes was completed in 1994, early on in the project.
Obviously, genetic and biological are two very different terms. There is NO gene for sexual orientation, so you can't call homosexuality genetic. The human genome project has sparked many other research projects into biological effects of the genes, but that doesn't change the fact that homosexuality is not genetic, only leaves open the door for biological factors (which no one has still yet to make any connection to homosexuality).
Let me ask you this:
1) Did you state that there is no sexual orientation gene?
2) Did you state that homosexuality was biological and not genetic?
3) Did you state that heterosexuality was biological and not genetic?
4) Did you state that because procreation requires a man and a woman (gender is based on genetics), one could deduce that heterosexuality is essentially genetic?
I assume you will answer "yes" to all of these questions.
Just because being a man and woman is genetic and we need a man and a woman to procreate does not mean that heterosexuality is genetic. You could basically state the same thing with two men (gender being genetic) who are drawn to one another in a sexual way (homosexuality). It's obviously in their genes to be drawn to one another considering being a man is genetic and they have urges for one another....Procreation is a whole other topic and does not change the fact that there is no sexual orientation gene. That's why your statements are contradictory. Sure, you didn't use the exact words "sexual orientation is genetic", but you stated it was in the genes, but only heterosexuality, not homosexuality because that suits your purpose. Just because it suits your purpose doesn't make it correct.
You're statements are contradictory. I've shown you that. If you want to be wrong and ignore the facts then that's your prerogative.