Sentences with phrase «many times cells»

Every cell of a given organism carries the same chromosomes, and thus the same genetic information is copied exactly every time a cell
At other times the cell would be just an aggregate.
The complaint also alleges that they used coded language and, at one point, Adam Skelos purchased a one - time cell phone, known as burner phone, erroneously thinking that the calls could not be traced by any law enforcement surveillance, according to Bharara.
They also used coded language and at one point, and Adam Skelos purchased a one - time cell phone, known as a burner phone, erroneously thinking that the calls could not be traced by any law enforcement surveillance, says Bharara.
These caps shorten every time a cell divides, and short telomeres are a sign that the body's cells are wearing out and ageing.
But that imperfect copying also causes the telomeres themselves to be whittled away each time a cell divides.
The team lead by Prof. Verdon Taylor was able to demonstrate for the first time a cell - intrinsic mechanism regulating stem cell fate.
Each time a cell divides, its telomeres shrink.
Copying billions of base pairs every time a cell divides demands high fidelity.
12 Telomeres, sequences of DNA at the tips of chromosomes, get shorter every time a cell divides; when they get too short, the cell dies.
Every time the cell creates the alpha - synuclein protein, the tag gives off a light.
Every time a cell with linear chromosomes divides, it will lose a small piece of one of its strands of DNA.
Researchers have learned that telomeres grow shorter and shorter each time a cell divides; once they're gone, the cell dies.
Telomeres, the caps of DNA which protect the ends of chromosomes, shorten every time cells divide.
One day, doctors might be able to insert such devices into a cancer patient to tally how many times a cell divides and flag when to shut the cancer down.
Chinese scientists have injected a person with CRISPR / Cas9 - edited cells, marking the first time cells altered with the technique have been used in humans.
It seems to control how many times cells in the cerebral cortex can divide, which controls how much space there is for neurons.
Telomeres shorten every time a cell divides, and ultimately the loss of telomeres leads to cellular senescence, where cells cease to divide, and eventually, cell death.
Raquel Oliveira, first author of this study, explains: «Many cancer cells have these type of chromosomal abnormalities and we now show that this can bring additional problems every time a cell divides.»
Cellular toxicity was unrelated to the type of «carrier» solution used in the cell cultures, the use of HES made from different origins (potato versus corn starch), or the time cells spent in culture with HES.
Some of the sequence matched repetitive DNA in telomeres, the caps of chromosomes, which often shorten each time a cell divides and play an important role in aging.
One key difference between telomeres and cassette leaders is that leaders stay intact as long as the tape does, whereas telomeres become ever - so - slightly shorter every time the cell replicates itself or is hit by damaging agents like free radicals.
Each time a cell divides, the telomere gets shorter, but its function had long been unclear.
Every time a cell duplicates, it opens the door for new mutations that could lead to cancer.
However, each time a cell divides the specific binding pattern of the transcription factors is erased and has to be restored in both mother and daughter cells.
Yamaki explained that every time a cell replicates, a tiny bit of telomere is lost, so they get shorter with age.
These telomeres become shorter every time a cell divides, which hinders their ability to ensure that the new cells are identical to the parent cells.
Telomeres are the caps that protect the ends of chromosomes and they shorten every time a cell divides.
Each time a cell divides, some of the telomere is lost.
Each time the cell divides, the telomeric DNA shrinks and will eventually fail to secure the chromosome ends.
Each time a cell divides in most animals, its chromosomes make a copy for the new cell.
If DNA damage persists for a very long time the cells may eventually turn the checkpoints off without waiting for the DNA to get repaired.
They also calculated how many times the cells in their trauma - related body regions have been replaced since their last contact with their abusers.
Research from other scientists at Johns Hopkins, he says, had suggested that some tumors, particularly those that affect the nervous system, have mutations in the ATRX gene, which produces proteins that appear to maintain the length of telomeres, repetitive segments of DNA on the ends of chromosomes that typically shorten each time a cell divides.
Over time these cells split into two populations.
The other evidence for the stem cell fatigue came from observations that van Andel - Schipper's white blood cells had drastically worn - down telomeres — the protective tips on chromosomes that burn down like wicks each time a cell divides.
The little tips of chromosomes get shorter every time a cell divides, and this shortening is a mark of cellular aging.
This is the first time these cell types have been shown to be a promising marker for prostate cancer spread.
By age 9, their telomeres — the caps on the ends of chromosomes that shrink each time cells divide — can be as short as those of someone decades older.
It helps to lengthen the telomeres — the proteins and DNA on the ends of chromosomes that prevent dividing chromosomes from fraying — and therefore increases the number of times a cell can divide.
But the neuron first remained inhibited for a longer time, and that time overlapped with the time the cell was excited, which had the effect of suppressing the signal emitted by the brain cell.
Each time a cell divides, they get clipped a little bit shorter.
Every time a cell copies its genetic material to divide, these telomeres shorten.
Over time the cells colonize the shape, or the action of the body will break down the polymers.
Our DNA and its architecture are duplicated every time our cells divide.
Normally these vital end caps protect the loose ends of chromosomes from being chewed up or joined together, but are themselves whittled down every time the cell divides.
Beverly Emerson studies how different genes are turned on and off through the course of a cancer — from the time cells become precancerous until the time they develop into a mature cancer and spread to new organs.
«Their concentration becomes lower every time cells divide,» says Peter van Zijl, Ph.D., founding director of the Kirby Research Center for Functional Brain Imaging, «so our ability to see them diminishes..
In live, real - time cell - based experiments, it is beneficial to read from the bottom of the microplate, rather than the top.
One of our strongest natural defences against cancer is the gradual shortening of telomeres every time a cell divides.
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