Not necessarily. If the gene is recessive, it will be passed on. The question then is: what happens when that gene expresses itself? The naive reaction is: ind

Not necessarily. If the gene is recessive, it will be passed on. The question then is: what happens when that gene expresses itself? The naive reaction is: individuals with the "gay gene" won't reproduce and it will eventually die out. A more nuanced perspective is that while that individual won't reproduce, their presence in the community helps the clan's survival, so a community with the gene is overall stronger, so the gene will stay around.