Does every male have a gene that makes them attracted to females

I am not gay, just asking.

Even if you were gay, there would be absolutely nothing wrong with that. But no, in response to your question, apparently every male is not necessarily attracted to females otherwise we wouldn't have homosexuality. In fact, contrary to what right-wing Christians will tell you in their hate-mongering efforts, there is not only one "gay gene," but a variety of genetic markers involved in sexual orientation. Please see the References at the end of the Biology and Sexual Orientation link.