Sentences with phrase «cells during cell division»

Furthermore, microtubules are the major constituents of the mitotic spindle, which mediates the orderly segregation of the replicated chromosome sets into the two daughter cells during cell division.

Perhaps the best known example of intracellular protein patterning is the molecular machinery that orchestrates the regular segregation of complete chromosome sets to the two daughter cells during cell division.

Chromatin is compacted to form chromosomes, which pass along an organism's genetic fingerprint to newly formed cells during cell division.

«Plasmids have developed sophisticated mechanisms to ensure their transmission to daughter cells during cell division,» Kempf explained.

Researchers of the University of Bern have now investigated how trypanosomes equally distribute their «power plant» to the daughter cells during cell division.

At least partially responsible for this is the presence of a diffusion barrier that restricts movement of molecules from one side to the other side of the cell during cell division.

The de-repressed satellite RNAs induced damage to the chromosomes by fusing them inappropriately and breaking them in what is called genomic instability, a catastrophic event for the cell during cell division, which can lead to cancer.

Delivery of chromosomes, the basic units of inheritance, to each daughter cell during cell division is mediated by the centromere.

Not exact matches

It remains an important nutrient for optimal cell division and growth, making the reasons to take it during pregnancy all the more obvious.

Aneuploidy occurs when parts of chromosomes beyond the normal 46 are missing or added to a person's genetic material during cell division.

In addition to helping supply oxygen to all tissues, these nutrients participate in cell division and protein synthesis, making them especially important during this time of rapid fetal growth.

Here's what they found — during cell division, UHRF1 recognizes newly copied DNA at sites that are missing methyl tags.

«When a new substance forms during a chemical reaction, many students think that the atoms and molecules have actually changed into something new, whereas they simply rearranged, that the mass increase of plants is due to minerals in the soil, or that cell division alone accounts for animal growth,» said Cari Herrmann Abell, a senior research associate at Project 2061.

Researchers were able to date the age of each new clone back to the parent tree by comparing the everyday mutations that happen with known regularity during the process of cell division.

«We found that the microtubules that orchestrate chromosome segregation during cell division behave abnormally in older eggs.

But understanding the precisely orchestrated choreography that unfolds within each egg during cell division will eventually allow us to correct the errors, to ensure the production of healthy eggs that can be fertilized.

Centrioles act as anchors for the spindle apparatus, which pulls genetic material apart during cell division.

Even after the principles of epigenetics came to light, it was believed that methylation marks and other epigenetic changes to a parent's DNA were lost during the process of cell division that generates eggs and sperm and that only the gene sequence remained.

«Ladies, this is why fertility declines with age: Age - related female infertility explained by a defect in the choreography of chromosome sharing during cell division in eggs before they are fertilized.»

«We know that CEP63 depletion leads to problems during meiosis, a specialized type of cell division that is required for male germ cells to produce sperm,» explains Stracker.

Henikoff told Malik about his work with proteins — histones — that attach to the central regions of chromosomes — centromeres — during cell division, maintaining adhesion between chromosomes most of the time, but also playing a role when the chromosomes are pulled apart to prepare them for duplication.

It was during this time that I started to explore the literature on bacterial cell division.

My small research group's forays into various aspects of cell division controls have been well supported during these years in Singapore.

But exposure to the chemicals blocked cell division, which could lead to neurological disabilities in babies if their cells are exposed at particular times during fetal development.

This group also clarified that Shugoshin controls DNA replication (the process by which DNA makes a copy of itself during cell division) in subtelomeres as well as higher - order structure of chromosomes.

A portion of the telomere DNA is lost during cell division.

This new insight into how chromosomes are disassembled and reassembled during cell division will allow researchers to begin answering basic questions about epigenetic inheritance, as well as human disease such as chromosome disorders and cancer.

Yeast studies had suggested that Mus81 was critical for a specific stage in cell division that's essential for chromosome recombination during reproduction.

Like others before him, Schrödinger was struck by the fact that chromosomes are accurately duplicated during ordinary cell division (mitosis, the way in which an organism grows) and during the creation of the sex cells (meiosis).

During cell division, chromosomes acquire a characteristic X-shape with the two DNA molecules (sister chromatids) linked at a central «connection region» that contains highly compacted DNA.

The enzyme lengthens the caps, or telomeres, on the ends of chromosomes, which wear off during each cell division.

Previously, our main clue that X and Y had a common ancestry was that they swap a few small sections during one kind of cell division, just as pairs of ordinary chromosomes swap much larger chunks.

The egg's very structure, its scaffolding of proteins that guide the chromosomes during cell division, may also play a key role in turning on the necessary genes.

In the nucleus of eukaryotic cells, DNA is packaged with histone proteins into complexes known as chromatin, which are further compacted into chromosomes during cell division.

Repairing the chromosome damage during cell division caused it to be defective.

This genetic recombination takes place during a specialized form of cell division called meiosis.

First, they determined how repair proteins failed to recognize and act on chromosome breaks during cell division.

During meiosis, the genome of a diploid germ cell, which is composed of long segments of DNA packaged into chromosomes, undergoes DNA replication followed by two rounds of division, resulting in haploid cells called gametes.

Certain chromosomes, the researchers found, exploit this asymmetry to move themselves over to the «right» side of a cell during division and wind up in the egg.

Paulo Navarro - Costa, first co-author of this study and researcher at the IGC explains: «Similarly to humans, fruit fly ovules also have a resting period during meiosis — the specialized cell division required for the formation of healthy reproductive cells.

Gabriela Cabral, a PhD student in the lab of Alex Dammermann at the Center for Molecular Biology of the University of Vienna, explains: «Many people thought that centrioles are held together by the same glue as chromosomes, a substance called cohesin, which is destroyed during cell division.

They all cover processes affecting chromosomes during cell division.

The shortening of telomeres is a process that occurs naturally in the body each time that a cell divides: during cell division the DNA, which is tightly packaged into chromosomes, must be duplicated but the DNA - copying machinery design itself, prevents the full replication of the ends of the chromosomes.

During that time, 42 of these stem cells underwent a spurt of division, churning out two kinds of cells: intermediate cells that would go on to produce nerve cells as well as mature nerve cells themselves.

Membrane remodeling typically occurs during cell division, during cell movement as it slithers around, and during vesicle formation, when a small piece buds off like what you might see in a lava lamp.

The mutations occur during natural cell division, and the regions that are protected are those that are important for the function or survival of the cells.

Daughter cells inherit the genetic scars during cell division.

In animal cells (as well as yeast cells), the microtubules that act to separate chromosomes during cell division are usually organized around a central structure.

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

«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 autcell, 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 autcell division to segregating the copied chromosomes to daughter cells properly,» said Dr. Norihiko Nakazawa, of OIST's G0 Cell Unit, the paper's first autCell Unit, the paper's first author.