Yesterday it was reported that a group of scientists had put forward a new theory that epigenetic marks may play a key role in determining why people are gay. According to press reports, these "epi-marks" determine how genes are expressed and are normally "erased" between generations, but in cases where they are not erased, they may be passed on from a mother or father in a way that can lead to a child becoming gay.
Which means, according to Bryan Fischer, that homosexuality might be a "birth defect" which could lead prospective parents to choose abortion:
As I have said before, I suspect that not even homosexual activists today want the gay gene to be found, even if it exists, because of advances in prenatal genetic testing. It is now possible to routinely screen for 3500 genetic defects while a child is still in the womb.