Can genes be passed on without sex?

Question by DesiDani(still waiting for 12am): Can genes be passed on without sex?
If so how? A poster said that and that does not make sense to me. So ease my questions, please explain how is this possible?

“It is likely that homosexual individuals are able to pass on their genes as effectively or more effectively through their close relatives by helping them and their offspring to survive than by reproducing themselves. The exact pathway or mechanism for this is unclear, but whatever it is, it is obviously evolutionarily successful; otherwise, genes conferring homosexual attractions would not be so ubiquitous and would have been eliminated by natural selection eons ago”

So how is it possible to pass on genes through close relationships? Doesn’t this person mean passing on a behavior and not genes?

Please ease the pain in my eyebrow strain,
“Genes can be passed down through invitro fertilization…no sex involved.”
That is in a lab and that is not natural.
Wait, isn’t that passing on a behavior and not a gene.
Wise Duck:
Then you are talking about conditioning and social influences. That is Sociology what does that have to do with Biology?

Can you help? Leave your own answer in the comments!