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).
So, you are saying that there is no gene for heterosexuality either then...What "biological factors" create a heterosexual? Or do we all strive to be heterosexuals because the bible tells us so? Not trying to be argumentative, just trying to understand how you feel we become heterosexuals since it is not genetic.