Sentences with phrase «time a cell divides»

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.

Each subsequent time a cell divides, these circular chromosomes are torn apart unevenly.

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.

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.

These caps at the ends of chromosomes protect your genes from being eroded each time a cell divides.

Researchers have learned that telomeres grow shorter and shorter each time a cell divides; once they're gone, the cell dies.

Random mistakes account for approximately three mutations each time a cell divides, the researchers found.

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.»

Each time a cell divides, it must replicate its DNA to provide a copy to the two daughter cells.

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.

Each time a cell divides, the telomere gets shorter, but its function had long been unclear.

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.

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 and makes a new copy of its DNA, special enzymes attach caps at certain spots along the copy's length.

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.

Every time a cell divides this information has to be precisely copied so that the newly made cell receives a perfect replica in order that it, too, can function properly.

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.

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.

Longer - than - expected telomeres — which are composed of repeated sequences of DNA and are shortened every time a cell divides — are associated with an increased cancer risk, according to research led by scientists from Pitt and Singapore.

The little tips of chromosomes get shorter every time a cell divides, and this shortening is a mark of cellular aging.

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.

Each time a cell divides, they get clipped a little bit shorter.

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.

The end of the tail gets docked each time a cell divides because the duplicating machinery can't copy the last few DNA «letters» at a chromosome's ends.

Each time a cell divides, however, the telomeres become shorter.

«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..

Telomeres shorten each time a cell divides to make new cells, until they are so short that they are totally degraded and cells are no longer able to replicate.

One of our strongest natural defences against cancer is the gradual shortening of telomeres every time a cell divides.

Watson and Olovnikov noted that the polymerase enzymes that normally replicate DNA every time a cell divides are not able to copy the chromosomes all the way to the very tip, leaving a small region at the end of each telomere uncopied, much like a tape recorder can not play the last few centimeters of tape in a cassette.

Each time our cells divide, a bit of that cap is lost.

Every time your cells divide, your Telomeres get a little shorter, meaning, the ability to adequately protect the cell is reduced.

You see, every time your cells divide your telomeres get shorter.

Hundreds of billions of cell divisions occur in the body daily, and each time a cell divides, it needs to replicate an identical set of DNA, or approximately 3 billion base pairs.

Normally, some telomeres can be lost each time cells divide.

However, throughout your life, every time your cells divide, the telomeres shorten.

But every time our cells divide, the telomeres shrink.

Every time our cells divide, though, a bit of that cap is lost.

It all has to do with telomeres, the proteins at the end of chromosomes that become shorter every time a cell divides.