You see the problem with saying that its all genetics and stuff is that it reduces humans to just a bunch of chemical reactions and electrical impulses, which is clearly not correct.

If this were the case then it would undermine the entire history in humanity of behavioural correction and general changes in behaviour. According to this theory then a person is born to be a murderer, or an adulterer, or a liar, or a thief etc and they cannot change. There would be no point in having discussions or dialogue's on any issue, as it has been determined by our genes how we will respond.

This entire thread would be useless, as none of us has the ability to reach in to each other and change genes, chemicals or electrical impulses and thus affect behaviour.

Yes a person does have what I would call 'abilities' determined to a certain extent by their genes, but behaviour is not determined by genes. The only exceptions to these cases would be where a person is actually disabled, and there is something fundementally wrong with their gentic make up, like in Down's Syndrome.

As behaviour is not just a bunch of chemical reactions and electrical impulses I believe that Science actually does not have a role to play in behaviour. You can't analyse behaviour like you can a volcanic rock or a piece of sillicon. These things are tangible, whereas human behaviour is not. I would say that you need rational reasoning independent of science to determine human behaviour.