bioluminescence!!

Yes i have heard of bioluminescence. I have somewhat of an idea of what is it. It has to do with lights and organisms. I do not know of any organisms that have this trait. Some functions that i think that they have is to have to ablity to glow and attract mates and such. I think it can also scare away predators. Some questions i have is how an organism gets this trait. Is the chemical a gene or a natural response? Does this trait help the organism live? Does the trait help the organism produce offspring?