I think we are much alike as very young children and learned differences come about at a very young age. For example, both girls and boys play with dolls. Parents teach them that girls have a Barbie while boys have a G.I. Joe. Outside of our biology everything goes along something like that.

Most of the brain is fundamentally the same between males and females. Therefore, many behavioural traits are actually put into young, pliable brains.
However, there is one major "wiring" difference. Males generally have more connections between the front and back of each hemishpere than females, giving them an advantage when it comes to physical skills, whilst females usually have more connections between the hemispheres than males, giving them empathy and multi-tasking skills. However, this is a general observation, with greater and lesser variation in individual cases.
(Research suggests that these connections tend to form under the influence of hormones.)

Thank you BBC4 for a fascinating series on the subject!

According to quantum physics everything we see ,touch or hear is a waves of energy with different frequencies so the soul involvement is very possible.

Agreed, but we are a bit more complicated.
Given that we are now overpopulated, continued breeding of every individuals could wipe most out.
The chinese example of 1 child has done amazing things for the later generations, only one child the parents can afford more education, 2 lots of doting grandparents and so on.
Even in our society, many people who do not have offspring of their own, contribute to society as a whole.

Ok...

I would say we are both biological AND cultural creatures. While we aren't the only cultural creatures, our cultures are the most complex and enduring of any other creatures. There's an excellent perspective available in two books by Yuval Noah Harari: Sapiens and Homo Deus. In them, he describes three levels of reality: objective (scientific); subjective (individual); and inter-subjective (cultural). Living in the intersubjective category are all the things that have no objective reality, but that we all agree upon anyway, like: money, national borders, and gender roles.

I select the last item to respond specifically to the title subject of the post. There is a lot about human gender expression that has little to do with biological differences, and a lot to do with things that have no objective reality, but that we agree upon anyway. These are the roles we have constructed out of our stereotyped perceptions of objective reality, comparing ourselves to other animals and so on. Most of the scientific research indicates, however, that there is much less objective sexual dimorphism among individual humans that our culturally-proscribed gender roles would have us believe.

It's just like the idea in physics that if you know the properties of a particle (mass, velocity, vector, etc.) and all the properties of everything else in the universe, the laws of physics will indisputably permit you to predict the future movents, location, "behavior" of said particle.

I'd posit that with biology there is a very similar underlying principle--but the predictive capacity becomes orders of magnitude more complex because living things (unlike particles) can be motile and responsive to environment.

I think some broad predictions (perhaps re: probabilities) could be made if you know things like a person's sex/gender/identity, socioeconomic class, education, health, etc. That's just sociology--e.g. you could probably broadly say something like a , , , person who was exposed to early in life and attains level of education has a X% chance of going to prison. The base of that pyramid is biology--and the next levels up (e.g. socioeconomic class, ACEs, etc.) can impact biology (e.g. epigenetics).

So, yeah: start with that light of "nature" and shine it through whatever filters of "nurture" apply.

Had to google sexual dimorphism. Not sure what this has to do with a question about biological basis of behavior (other than sex related hormonal influence)? All behavior is initiated by a biochemical action.

This post was inspired by another discussion about male aggression and whether it is due to biology or ?something else? What else is there? Culture? Where does culture come from if not biology? Are men willfully evil? Does free will exist? Inquiring minds want to know.

Actually, each of us is an amalgam of lots of different biological creatures. The unknown exists, the supernatural does not.

Our sexual dimorphism in regards to size is minimal compared with the other great apes.

It is difficult to separate emotion from just every day and random acts. As Spock would that is not logical. I have sat and just concentrated on the abstract it is possible to think with pure logic it, however, takes a ton of effort.

Our thoughts and emotions are triggered by chemical reactions in our bodies, so the answer is no.

Nature vs. nurture. Environment very important.

You are quite right, we are biology based. Which reminds me. I'm hungry. Hamburger steaks with fried onions and baked potato is in my future.