[Berlan]

Does anybody know how much intelligence is determined by our genes?
There are about 10^15 Synapses in the brain, but how many of these are already hard-coded in DNA?

[8pla.net]

Perhaps it depends on the percent of Neanderthal DNA people may have?

http://www.nbcnews.com/science/science-news/neanderthals-had-shallow-gene-pool-scientists-say-n86096

( Love that photo in this article.  )

[Art]

Some say about 50 % give or take outside circumstances (parents, environment, opportunities, etc.).
Interesting article here:
http://motherboard.vice.com/blog/intelligence-and-genetics-do-some-people-inherit-an-edge

[DemonRaven]

Genetics is a very complicated field as there is so much more to it then just the dna. The genes itself have "switches" that determine how that gene is expressed. Humans have a lot of DNA and they are just now figuring how much certain characteristics are hard wired and how much is nurture.  So like anything else I think it is a combination of both.

[ivan.moony]

I think it's pretty simple: intelligence = zygote (fertilized egg cell) + DNA + input (food and experience) + time

Maybe it can be achieved other way, that is what artificial intelligence is about.

[ranch vermin]

people pretty much said what i was going to say...  Its hard to say how much,  because circumstances can change just as much as people decide different things.