Sentences with phrase «many identical cells»

Every 16 days, spermatogonia diligently copy their genetic material and divide into two identical cells.

After five or six days, the embryo is composed of a cluster of identical cells called a blastocyst.

The two postembryonic touch receptor neurons in the nematode Caenorhabditis elegans arise from essentially identical cell lineages and have the same ultrastructural features.

Used as a counter electrode in a dye - sensitized solar cell, the material enabled the cell to convert power with up to 6.8 percent efficiency and more than doubled the performance of an identical cell that instead used an expensive platinum wire counter electrode.

The researchers believe the hammerhead shark reproduced by a type of asexual reproduction called automictic parthenogenesis, whereby an unfertilised egg is activated to behave as a normal fertilised egg by a small, nearly genetically identical cell known as the sister polar body.

Bacteria expressing enzyme in one cell (bright green), while genetically identical cells do not, remaining protected from antibiotic onslaught; image courtesy of Yuichi Wakamoto / Neeraj Dhar / John McKinney Some strains of nasty bacterial infections, such as MRSA (methicillin - resistant Staphylococcus aureus), come loaded with resistance to antibiotics built right into their genes.

For example, he lumps together competition between genetically identical cells and competition between alleles in a population.

In contrast, the immortalized fat cells allow experiments to be repeated multiple times on identical cells ensuring consistent, reproducible results.

They found that here too, the effects of aneuploidy were varied across otherwise identical cells.

But in a paper published in the journal Cell, researchers at the Koch Institute for Integrative Cancer Research at MIT reveal that aneuploidy alone can cause this significant variability in traits, in otherwise genetically identical cells.

Once manufactured, whereby thin layers were applied with precise composition by atomic layer deposition (ALD), the researchers compared the stability of these cells with identical cells without this layer.

A clone is a group of identical cells that are derived from the same cell.

Like metamaterials, photonic crystals are made of many identical cells.

Sheltzer, who began his project in the laboratory of Dr. Angelika Amon at MIT and carried it to conclusion in his own research group at CSHL, placed two sets of otherwise identical cells in culture dishes, side by side.

«It's one set of genetically identical cells that are in communication with one another that have a sort of common purpose or at least can coordinate themselves to do something,» Volk explains.

Unisexual reproduction is a sexual cycle that can occur between genetically identical cells and, as we observed here, allows the introduction of limited de novo genetic diversity through meiosis.

Any differences that develop between the two groups of otherwise identical cells can only be due to the edited gene.

«Single cell genomics can be applied to understand the heterogeneity of tumors, to explain how genetically identical cells may show distinct behavior, and to explore the vast, uncharacterized microbial landscape.

It reinforces the notion that tumors (and TNBC in particular) are not a homogeneous mass of identical cells, but a collection of distinct sub-populations of cells evolving somewhat independently of one another.

The effort worked, but the flashing was erratic rather than regular — even identical cells quickly became hopelessly out of sync, he said.

In mitosis, one cell divides to produce two genetically identical cells.

Both TMA blocks contained identical cell lines, cored from cell pellets, as previously detailed for normalization between TMA blocks.

But compared to a homogeneous material like water or a magnet — or even a collection of identical cells in a dish — cancer is a hot mess.

«Depending upon molecular fluctuations, a single gene in a cell may switch randomly between active and inactive states, leading to vastly different biological responses, even for genetically identical cells,» says Munsky.

Scientists ask the same question when genetically identical cells in identical environments — monoclonal cells produced by a single ancestor that replicated — exhibit wildly different behaviors.

Then you were two identical cells.

«We could show that even between seemingly identical cells, with the same morphology and the same genome, there are surprisingly pronounced differences on the level of the proteins,» Beck said.

Broadly speaking, however, analysis of transcriptional regulation at the single cell level has provided evidence for a strong stochastic element: genetically identical cells within the same environment show significant variation in molecular phenotype, in a fluctuating manner [24].

Every drop of this DNA «rocket fuel» contains more than 5 billion identical cells of energy that feeds your mitochondria like nothing you have experienced before.

5 billion identical cells of energy that feeds your mitochondria like nothing you have experienced before.»

Powerpoint goes through the stages of mitosis and what happens at each stage to result in genetically identical cells.

Not exact matches

Thus, the objection is that a conscious occasion could not be identical with brain cells since it is one and they are many.

I would seem to be identical with the history of the assemblage of cells that includes my neurons; my action, in the same way, would seem to be identical with everything that is happening in my body while I perform it.

These stem cells would be genetically identical to the patient from whom the original adult cell was taken and could be used for research and therapeutic purposes.

I could go on and elaborate on a number of other disciplines or facts that creationists have to pretend into oblivion to retain their faith, including the Ice Ages, cavemen and early hominids, much of microbiology, paleontology and archeology, continental drift and plate tectonics, even large parts of medical research (medical research on monkeys and mice only works because they share a common ancestor with us and therefore our fundamental cell biology and basic body architecture is identical to theirs).

Even large parts of medical research would be rendered unusable but for the fact that monkeys and mice share a common ancestor with us and therefore our fundamental cell biology and basic body architecture is identical to theirs.

This is the date before which the cell - bundle could split into identical twins or larger multiples.

The maximum difference between load cell output readings for repeated loadings under identical loading and environmental conditions; the ability of an instrument, system, or method to give identical performance or results in successive instances.

• Loss - In - Weight: The compact trapezoid shape is identical to both the volumetric & gravimetric feeder with either a single high performance digital or analog load cell.

«Immune system cell clones created before birth may last for decades: Identical twins may exchange T cells through cord blood before birth.»

In addition, there may be applications where the use of one's own stem cells are needed, even if stem cells from an identical twin are available.

While all cells in a specific organism share the identical DNA sequence, only a fraction of those genes are activated in a given cell type.

Salk scientists and collaborators have shed light on a long - standing question about what leads to variation in stem cells by comparing induced pluripotent stem cells (iPSCs) derived from identical twins.

Several physical measurements, including electron microscopy, assured us that our product was a closed loop coiled tightly around the virus - DNA template and that it was identical in size and other details with the replicative form of DNA that appears in the infected cells.

Two sperm cells from the same father apparently fused with the egg, which then split in the same way that typical identical twins come about.

Another is how cells in a single organism take on different functions despite having identical genomes.

Biotech experts point out that, aside from some clever watermarks the researchers stuck into the genetic sequence, the synthetic cells are identical to a natural species.

Each person can have about 100 million different receptors, referred to as their T cell repertoire, with little overlap even in identical twins.

Identical hardware designed for growing cells during spaceflight were used for both the flight and ground studies.

Since the algae reproduces by cell division about once per day in the laboratory, numerous genetically identical cultures could be derived from the isolate.