The repeats are mobile elements called transposons, also known
as jumping genes, which can trigger mutations in the genes around them and lead to genetic disorders.
(This is also known
as a jumping gene.)
Not exact matches
Picture the great
Gene Wilder
as he hobbles out to greet the crowd in «Willy Wonka», loses his cane, falls on his face, converts the move into a flip, and
jumps upright with his arms extended.
As the researchers report in Nature, a minute section of that
gene mutated by
jumping to a new location.
«The most frequent way is the transfer via mobile genetic elements such
as plasmids, or via transposons, the so - called
jumping genes,» explains Friederike Hilbert, scientist at the Institute of Meat Hygiene at the Vetmeduni Vienna.
In a later study comparing almost 3400 active
genes in 70 spider species, Bond's team found that mostly webless, ground - dwelling arachnids such
as wolf spiders and
jumping spiders diversified much more quickly than web weavers, perhaps because they were able to exploit a plethora of new opportunities once they no longer had to build and tend webs.
Healthy cells (left column) prevent
jumping genes such
as LINE - 1 from turning on production of their proteins.
Seger, with an international team, sequenced the
genes of each of the three species of cyamids that
jump from whale to whale
as the leviathans socialize.
As flowers opened and scent levels peaked, the
gene PhABCG1 went into overdrive; levels of the protein that it makes
jumped to more than 100 times higher than during the budding stage, the researchers report.
«
Jumping genes» (in green neuron) may help ensure that every brain is unique, but could also contribute to neurological disorders such
as schizophrenia.
The sequence had to be easy to isolate but couldn't
jump inexplicably from one organism to another,
as some
genes do.
The researchers analyzed DNA sequences known
as transposons, or «
jumping genes,» which can
jump from one part of the genome to another, often duplicating themselves in the process.
If these «
jumping genes» lose their normal controls
as a person ages, they could start to wreak havoc on the machinery that supplies energy to brain cells — leading to a loss of neurons and ultimately dementia, the researchers say.
Surveillance that is not stringent enough, on the other hand, would allow eggs with a lot of
jumping gene - related errors to survive, and lead to a high level of birth defects, such
as those caused by an incorrect number of chromosomes in the offspring.
The octopus genome is enriched in transposons, also known
as «
jumping genes,» which can rearrange themselves on the genome.
Seems to me that those who digested their heart or leg muscles before using fat reserves when there wasn't any food wouldn't have
jumped into the
gene pool with all the vigor
as those of us that actually lived on our storage organ.