'I'm not gay so my son will never be gay" - Bauchi Governor declares

Bauchi State Governor Isa Yuguda was a guest on BBC Africa radio show yesterday where he talked about the anti-gay law. He supported the bill and declared that he's not gay so known of his sons can be gay. 

When asked what he would do if any of his sons confessed to being gay, Governor Yuguda exclaimed 'God Forbid!' then said "What will I do? Well, I may have to resign to my faith that I have a son who is a gay but I'm assuring you I'm not gay so my son will never be a gay. Gay blood doesn't flow in our family. I will never have one" Is homosexuality hereditary?