in my opinion, jewish people's intelligence has  nothing to do with the blood, dna etc. it's their mindset (overbearing, money minded) that brings them to the higher level. that's why jewish parents are well known to be strict and overbearing. in fact, most of them are european looking (ashkenazim) rather than middle-eastern looking (mizrahi)

and because of their success, jews are susceptible to judeophobic remarks such as yahudi laknatullah, scum of the universe etc. they are also blamed for all misfortunes in this world and subjected to conspiracy theories such as freemasonry, rotary club, new world order etc

contrary to popular belief, "god's chosen people" is a term used by the jews to deliver and propagate their mosaic faith, not as an excuse to belittle the gentiles/goyims as a subhuman.

yay. i heard their parents begin a very strict education schedule for them since they were very young. like 7 years old expected to finish memorise the Bible.
Btw,annariana, what exactly do you study in neuroscience? and how is it? fun?

I bet the score dispersion within the racial groups are larger than the difference in means between groups. Also your stats are not controlled for education, social conditions, health etc.

Is it a surprise that bushmen score the lowest when they're also the least plugged into the modern world?

I'd say its practically impossible construct an experimental design to fully normalise for education, environment, health, etc given that the invididual experience is so varied. Apart from that how could any research design factor for individual traits like determination or sloth?

on the observed stereotypes e.g. indians = doctors, rubber tappers, paraquat suicides OR chinese = accountants, businessmen, ahlong victims: a lot of these arise from social conditions where the people from the group share common ethnic experiences/ influences. Indians more likely to be laywers & doctors because these are prestigious professions for that ethnicity (social) and their parents are more likely to be doctors/lawyers (family).

there's no reason to suspect genetic traits.

Ifthere is a link from genes -> traits -> behaviour -> IQ, how strong is causal link between each link in the chain?

Even if this is true (& I have reservations over "Behaviour are strongly inherited bloodline-wise") how far can these genes be applied to summarise racial IQ? Bear in mind also that even those who strongly identify with a certain race may not genetically be of pure race anyway.

How do genes influence behavior?

No single gene determines a particular behavior. Behaviors are complex traits involving multiple genes that are affected by a variety of other factors. This fact often gets overlooked in media reports hyping scientific breakthroughs on gene function, and, unfortunately, this can be very misleading to the public.

For example, a study published in 1999 claimed that overexpression of a particular gene in mice led to enhanced learning capacity. The popular press referred to this gene as "the learning gene" or the "smart gene." What the press didn't mention was that the learning enhancements observed in this study were short-term, lasting only a few hours to a few days in some cases.

Dubbing a gene as a "smart gene" gives the public a false impression of how much scientists really know about the genetics of a complex trait like intelligence. Once news of the "smart gene" reaches the public, suddenly there is talk about designer babies and the potential of genetically engineering embryos to have intelligence and other desirable traits, when in reality the path from genes to proteins to development of a particular trait is still a mystery.

With disorders, behaviors, or any physical trait, genes are just a part of the story, because a variety of genetic and environmental factors are involved in the development of any trait. Having a genetic variant doesn't necessarily mean that a particular trait will develop. The presence of certain genetic factors can enhance or repress other genetic factors. Genes are turned on and off, and other factors may be keeping a gene from being turned "on." In addition, the protein encoded by a gene can be modified in ways that can affect its ability to carry out its normal cellular function.

Genetic factors also can influence the role of certain environmental factors in the development of a particular trait. For example, a person may have a genetic variant that is know to increase his or her risk for developing emphysema from smoking, an environmental factor. If that person never smokes, then emphysema will not develop.