In 1996, her group found strong but not conclusive evidence that
an almost identical gene controlled cellulose synthesis in cotton.
The less adept mice, Rubin's team found, carry extra copies of a previously known human gene called DYRK; a mutated version of
an almost identical gene in fruit flies, called minibrain, causes neurological defects.
Not exact matches
Although
genes are recognized as influencing behavior and cognition, «genetically
identical» does not mean altogether
identical;
almost no one would deny that
identical twins, despite being natural human clones with
identical DNA, are separate people, with separate experiences and not altogether overlapping personalities.
In
almost all organisms, every cell contains
identical genes — it is a difference in
gene activation that distinguishes a blood cell from a nerve cell.
The long stretch of DNA that encompasses the
gene in Tibetans is different from any other living human groups and
almost identical to Denisovans.
But the genome studies show that the two share an
almost identical set of
genes that kick in when water vanishes, says Arakawa.
One Neanderthal, whose DNA Reich obtained from a toe bone, had
almost no diversity in about one - eighth of the genome: both copies of each
gene were
identical.
The findings help to explain why we humans have some immune
genes that are
almost identical to those of chimpanzees.
New findings help to explain why we humans have some immune
genes that are
almost identical to those of chimpanzees.
Genomic science has found that many of the
genes that build a developing body are
almost identical across a wide range of highly diverse animals.