Humans evolved Coordinator mutations that are good at turning on human versions of genes, but not so great at
turning on chimp genes.
Chimp Coordinators, on the other hand, easily
turn on chimp genes but don't work as well for human genes.
Not exact matches
In one run,
CHIMP neglects to
turn on its drill before trying to cut through a wall, but is still able to tear through it with sheer strength.
In one test,
chimps taught to count from one to nine (in return for a peanut or other treat) competed with a dozen human volunteers in monitoring numbers that
turned into squares
on a computer screen.
The blue stains in these developing mice embryos show that the human DNA inserted into the rodents
turns on sooner and is more widespread (right) than the
chimp version of the same DNA, promoting a bigger brain.
Then for HARE5, the most active enhancer in an area of the brain called the cortex, they made minigenes containing either the
chimp or human version of the enhancer linked to a «reporter» gene that caused the developing mouse embryo to
turn blue wherever the enhancer
turned the gene
on.
That film has now been edited and will be airing
on the BBC this week — the trailer's after the jump.While it seems more like a premise for a bad reality TV show that a scientific study, it
turns out it's precisely that — primatologists outfitted the
chimps with cameras as part of their research into how chimpanzees perceive the world and one another, according to the BBC.