Sentences with phrase «many daughter cells»

But in due course their daughter cells differentiate.

These modifications represent a layer of information that can be passed from a parent cell to a daughter cell but is not encoded in the DNA sequence.

Specifically, the study reveals a mechanism that helps explain how dividing cells pass patterns of epigenetic information called methyl tags to their daughter cells, a crucial part of regulating gene expression across cell generations.

«We and others have been following this family tree from one daughter cell to the next to discover how each cell type is created and how the parent cell «decides» if it should make more of itself or create the next cell type.

Juan Carlos Izpisúa Belmonte of the Salk Institute in La Jolla, California, knew that stem cells are more useful for gene therapy than ordinary cells, because they produce multiple daughter cells with the modified genes.

This complex biological machine gathers the chromosomes together and sorts them at the time of cell division, then sends them to the opposite poles of the daughter cells in a process called chromosome segregation.

«One progenitor cell can produce multiple daughter cells,» he said.

To create an egg, a progenitor cell called an oocyte divides into two daughter cells: a hulking egg cell and a wimpy polar body.

The oocyte's chromosomes must be carefully sorted so that a representative half goes to each daughter cell.

But in order to separate and be distributed successfully to each daughter cell, the chromosomes need to be tightly condensed and neatly packaged for transport and transmission to daughter cells.

Normally when a cell divides, the chromosomes are segregated equally to two daughter cells.

Correspondingly, all daughter cells that arise from a cell containing the marker also send out a light signal.

The distribution of fluorescent daughter cells can be used to create a mathematical model of blood formation, which can provide new insights into the behavior of stem cells.

Daughter cells grow in length and differ from the others to acquire typical functions that allow the root to transport water and nutrients.

Therefore, stem cells are on the tip, surrounded by daughter cells which are divided to produce root's tissues.

After the parental cell DNA is replicated, the duplicated DNA and cellular organelles are separated into two daughter cells during mitosis.

When they disrupted TBK1 activity, the cells could not separate chromosomes correctly into daughter cells and mitosis could not progress.

Proper control of the cell cycle is necessary to ensure that the resulting daughter cells inherit identical copies of the DNA.

«We now know why a crucial DNA - repair process shuts down just when the cell starts to divide into two daughter cells,» says Dr. Daniel Durocher, a Senior Investigator at the Lunenfeld - Tanenbaum Research Institute at Mount Sinai Hospital in Toronto, Canada.

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.

In fact, as with eukaryotic organisms, division of Caulobacter cells generates two different daughter cells, which can be easily separated.

Gabriela Cabral explains: «When a stem cell divides, it doesn't produce two identical daughter cells as normal cells do.

Other daughter cells would not have the reprogramming genes.

In fact, the researchers showed that the synthesis of the capsule is controlled by the same mechanisms that regulate the cell cycle, and identified the protein that inhibits the production of the sugar capsule in one of the daughter cells.

Of the two different daughter cells generated by Caulobacter at each cell division only one is equipped with the capsule.

At the end of cell division, the two centrioles inherited by each daughter cell separate, and later each of them forms a new centriole.

The team first used the tried - and - true method of growing yeast in Petri dishes and painstakingly counting how many times an individual yeast cell produced a daughter cell.

The age - delaying action of caloric restriction may stunt the growth of yeast cells so that the mother cells and daughter cells are easily flushed out of the chamber, Anderson speculates.

Through live imaging, they found that a ring comprised of the protein actin forms between the two daughter cells to block cytokinesis from proceeding.

But how the production of daughter cells from the different stem cell types is coordinated within a single niche is virtually unknown.

Gottschling noticed that after about 25 cell divisions — the equivalent of middle age in humans — DNA errors in daughter cells started appearing 100 times faster than normal.

In this case, the niche residing at the tip of the testis is the site of stem cell divisions, which are critical to produce daughter cells that later become sperm.

Mitosis, the cellular division that produces two genetically identical daughter cells, is perhaps the most fundamental process in biology.

Our results indicate that this delay may serve to coordinate the production of CySC and GSC daughter cells to ensure the correct association of one Gb with two somatic cyst cells.

Laux's team of researchers has shown that the CDF4's function is to initiate the differentiation of the stem cell's daughter cells.

Spindle fibers (gold above, red at right) align pairs of chromosomes (blue) and then separate the genetic material into two daughter cells (shown forming, above).

Scientists think that these niches control stem cell behavior, that is «telling» the stem cell when to produce more stem cells or when to produce daughter cells that will be the workhorses for that tissue or organ.

A scaffold made of microtubules is crucial for pulling the duplicated halves of the chromosome apart and directing them to each of the new daughter cells.

This striking finding shows that regulation of cytokinesis is how this niche coordinately produces daughter cells from different stem cell types.

Daughter cells inherit the genetic scars during cell division.

While researching the life cycle of baker's yeast, Saccharomyces cerevisiae, Gottschling's team figured out a way to label yeast so that they could spot genetic mistakes in daughter cells.

The germline stem cells there produce daughter cells that develop into mature sperms.

Accommodating these extra structures into the daughter cell's nucleus might be what increases the overall cell size.

When the scientists remove these surface proteins from the niche glial cells, the stem cells begin to grow and prematurely form new daughter cells.

During each cell division, more than 3.3 billion base pairs of genomic DNA have to be duplicated and segregated accurately to daughter cells.

Neural stem cells are responsible for the formation of differentiated daughter cells in the developing brain.

«While these macromolecules are important for the parent cell, they pose hindrances during cell division to segregating the copied chromosomes to daughter cells properly,» said Dr. Norihiko Nakazawa, of OIST's G0 Cell Unit, the paper's first author.

DiNardo and Lenhart showed that the division of these stem cells is regulated at the final stage of replication, called cytokinesis, right before the two daughter cells separate.

They further speculate that these eliminated macromolecules might be regenerated by the cellular machinery of the daughter cell when necessary.

Right before a cell starts to divide to give birth to a daughter cell, its biochemical machinery unwinds the chromosomes and copies the millions of protein sequences comprising the cell's DNA, which is packaged along the length of the each chromosomal strand.