Sentences with phrase «of identical cells»

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.

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.

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

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

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.

Not exact matches

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.

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.

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.

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.

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.

The shape and chemical composition of these granules is identical to organelles found in cells called melanosomes; these being responsible for creating and storing the pigment melanin.

Importantly, these three developmental signatures were found in distinct genetic clones — cells with identical patterns of genetic mutations — of tumor cells.

The researchers have shown that it is possible to produce chromosome modifications in human cells that are genetically identical to those observed in leukemia and other types of human cancer.

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.

The case presented in the latest paper, published in the journal Stem Cell Reports, suggests that uneven growth of identical twins could start during the early stages of preimplantation development.

Smell neurons begin as identical precursor cells, immature cells that have not yet «decided» which type of nerve cell they will become.

One plausible explanation was that over the course of successive population crashes, the devils had become so inbred that their cells look identical — at least to the animals» immune systems.

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.

In 1957, developmental biologists first discovered that they could insert the nucleus of adult frog cells into frog eggs and create dozens of genetically identical tadpoles.

«If you looked at a liver cell from my body and a neuronal cell from my brain, the DNA would be identical, but the cells themselves would be very different because they are composed of different proteins.

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

When a T cell detects one, it morphs into a fighting machine, zapping invaders with lethal chemicals, multiplying into an army of identical killers or signaling other immune - system troops to join the attack.

DNA sequences were once thought to be identical from cell to cell, but it's increasingly understood that mutations can arise during brain development that affect only certain groups of brain cells.

The development of each motor neuron was hardwired; each cell was always born in the same order and achieved the identical shape.

Because the cells used to seed the platform can come from anyone, the new tissues could be genetically identical to the intended host, reducing the risk of organ rejection.

In the new study, Mikhail Pogorelyy and colleagues from the Ecole normale supérieure in Paris, and the Shemyakin - Ovchinnikov Institute of Bioorganic Chemistry, Moscow, address this excess of T - cell clone sharing between genetically identical twins.

The team used a statistical model of T cell receptor formation to analyze receptor DNA sequences in blood samples from adult pairs of identical twins.

They first transplanted undifferentiated iPS cells into the leg muscles of genetically identical recipient mice.

Cloning may eventually give us basically identical genetic copies of extinct species, but we'll be restricted to animals that went extinct more recently and have well - preserved cells with intact nuclei.

The amount of gas from an identical wet cell over the same period was 5842 cubic metres — more than eleven times as much.

An embryo starts out as a tiny clump of identical stem cells.

They used the gene editing technology CRISPR to engineer a series of human embryonic stem cell lines, which were identical apart from the number of DNA repeats that occurred at the ends of their HTT genes.

He and his collaborators found that three transcription factors, when targeted to the pancreas of a living mouse, converted fully formed, non-insulin-producing pancreatic cells into cells that were functionally identical to insulin - producing cells — no stem cells required.

The result would not be a clone because of the way cells divide during sexual reproduction — the fertilised egg would not be genetically identical to the original iPS cells — but it would be something very strange and dangerous.

Even though 24 per cent of the genes» DNA had changed, the proteins the cells produced seemed identical to the originals (Science, doi.org/pb9).

When he injected mice with embryonic stem cells genetically identical to the mice's own tissues, the new cells thrived, growing into a large clump of adult tissues.

About half of melanoma patients harbor an identical tumor - specific mutation in the BRAF gene, which encodes a protein kinase that helps drive cell growth.

In the current paper, knowing that MYC, a transcription factor that binds the genome through sites that are identical to the binding sites of BMAL1, the team hypothesized that aberrant MYC expression perturbs the clock by deregulating components of the circadian network in cancer cells.

«We have found that the individual cells within melanoma tumors are not all identical, and tumors contain a sub-population of cells that are inherently drug resistant, which accounts for the fact that advanced melanoma tumors return no matter how much the tumor is depleted,» said Meenhard Herlyn, D.V.M., D.Sc., professor and director of Wistar's Melanoma Research Center.

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

This is the first direct evidence that cells indeed have an ability to distinguish identical copies of chromosomes and separate them in a regulated manner.

That single cell contains all the genetic information needed to develop into a human, and passes identical copies of that information to each new cell as it divides into the many diverse types of cells that make up a complex organism like a human being.

If each cell is genetically identical, however, how does it grow to be a skin, blood, nerve, bone or other type of cell?

The first primate clones made by somatic cell nuclear transfer are two genetically identical long - tailed macaques born recently at the Chinese Academy of Sciences Institute of Neuroscience in Shanghai.

One of the central mysteries of biology is why the genome is largely identical from cell to cell, even though cells do different things.

The structure and composition of the erionite from both regions is practically identical, and samples from each place cause mesothelioma - associated changes and inflammation in cell culture and mouse lungs.

«Only a subset produces IL - 17A upon skin injury, although the surface markers on these cells seem identical to those of other DETCs,» MacLeod said.

Josef Singer and Judith Fazekas, both lead authors of the study, discovered that a receptor frequently found on human tumor cells (epidermal growth factor receptor or EGFR) is nearly 100 percent identical with the EGF receptor in dogs.