Though he jokingly credits his elder sister Jacqueline with inheriting the bulk of
the genes for intelligence in his family, Veissi proudly graduated with a business degree from Florida Atlantic University, where he met Matey during a political science class.
And are there
genes for intelligence?
«There is no way I could select for hair color, eye color,
genes for intelligence,» Grifo says.
Seven
genes for intelligence are also associated with schizophrenia; nine genes also with body mass index, and four genes were also associated with obesity.
The study, published in the journal Nature Genetics, uncovered 52
genes for intelligence, of which 40 were completely new discoveries.
Not exact matches
Despite high heritability estimates of 45 % in childhood and 80 % in adulthood, only a handful of
genes had previously been associated with
intelligence and
for most of these
genes the findings were not reliable.
What turns out [is] that scientists are having [a] really, really hard time finding them, and what that tell [s] us is that there are these
genes that influence
intelligence but each particular
gene is responsible
for a tiny, tiny amount of variation — like a fraction of 1 percent.
Next week, the
Intelligence Advanced Research Projects Agency (IARPA), which is part of the Office of the US Director of National
Intelligence, will hold a meeting about a planned funding programme
for detecting genetically modified organisms that are potentially harmful, including ones that contain
gene drives.
So it could be really complicated, and so even when scientists actually identify these
intelligence genes — and they haven't really yet — but even when they do, that still doesn't necessarily tell us what those
genes actually do
for us.
Steve: Yeah, you get into the search
for intelligence genes.
Steve: And there's one of the researchers you quote in the article talks about, there may be
genes that are not directly responsible
for some aspect of brain function even at a biochemical cascade level; there might be a
gene that is responsible
for the width of the birth canal and that that could be associated with ultimately with
intelligence.
So,
for example, just to say
for the sake of argument, that there's a
gene that influences the width of the birth canal, and lets say that some versions of the
gene leave women more likely to have trouble giving birth, so that their children have loss of oxygen and that could lead to changes in the brain that lead to lower
intelligence scores.
It seems to be [as soon as we] started to be able to figure out what
genes were and what certain
genes did, it became natural to look
for the
genes associated with
intelligence, but that search has proven to be much more treacherous than probably the people in the field ever imagined.
There is little dispute that genetics accounts
for a large amount of the variation in people's
intelligence, but studies have consistently failed to find any single
genes that have a substantial impact.
By selectively adding or deleting stretches of DNA in the (artificially) fertilized cell, scientists could knock out
genes for a disease like diabetes or insert
genes coding
for extra height or
intelligence.
Seemingly unambiguous genetic goals — like trying to make people more intelligent — not only involve millions of
genes, raising the specter of easy error, but might involve conditional relationships:
For instance, our
intelligence might be tied to memory in ways we can't yet decode, so trying to improve one ability might inadvertently impede the other.
Certain mutations might cause severe retardation,
for instance, pointing to specific places to look
for a link between
genes and
intelligence.
The team found that a single polymorphism (a difference in one «letter» of the sequence) in the BDNF
gene accounted
for significant differences in
intelligence among those with similar injuries and comparable
intelligence before being injured.
While there is no suggestion that behaviour is determined directly by
genes — there is no
gene for termite fishing — genetics might change behaviour indirectly, by influencing manual dexterity or some aspects of
intelligence,
for example.
He adds that South University is currently searching
for experts in the fields of neural and cognitive sciences, biology and
gene engineering, physics, nanotechnology, environmental sciences, large - scale computational research, robotics, and artificial
intelligence.
Researchers are now looking
for the
genes that contribute to
intelligence.
But critics say that opening the floodgates will eventually lead to «designer babies,» altering
genes that code
for athletic ability,
intelligence, and physical traits.
Also, do not forget that the ubiquitous variety of cats in Singapore, which is commonly known as the «local breed» (not to be confused with the CFA - recogised breed «Singapura»), is one of the best candidate
for a pet as it is generally more hardy in terms of its health and displays much
intelligence, probably due to the good mix of
genes from its varied ancestry.
Cats were and continue to be bred
for everything from enhanced coat quality to advanced
intelligence — humans have even enhanced recessive
genes that nature introduced as a quirky trait then promptly forgot.