Sentences with phrase «genetically identical cells»

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

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].

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.

«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.

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

«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.

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.

«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.

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.

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

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.

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.

Not exact matches

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.

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

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.

In abnormal [PSI +] cells, which are genetically identical to normal cells, the important protein clumps together, and the cells are unable to grow under certain conditions.

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.

(They were careful to compare cells taken from genetically identical mice.)

Liver cells and kidney cells are genetically identical apart from their epigenetic marks.

As with the previous experiment, all the transplanted cells were genetically identical to the mice in which they were injected.

Previous studies in mice have shown, however, that even genetically identical iPS cells can trigger an immune response after transplantation.

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.

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

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

Alternatively, adult stem cells from the patient might be reprogrammed to provide genetically identical replacement tissue.

In the new study, published yesterday in PLOS Biology, Heitman and colleagues set out to explore whether genetically identical, unisexually reproducing C. neoformans cells were using aneuploidy to generate offspring that differed from themselves.

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.

But when he injected the mice with genetically identical reprogrammed stem cells, their immune systems attacked, destroying the cells.

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.

«The comparison showed that the Uppsala cell line was genetically identical with the original tumor whereas the U87MG cell line from ATCC had a different, unknown origin.

A cloning in the biological sense, therefore, is a molecule, single cell (like bacteria, lymphocytes etc.) or multi-cellular organism that has been directly copied from and is therefore genetically identical to another living organism.

The finding could have significant implications for cancer treatment, since it could explain why genetically identical cancer cells may respond differently to the same therapy.

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.

If you can create an embryo genetically identical to the adult — that is, a clone — you can harvest immune - compatible cells to replace any tissue you might want without fear of rejection.

Prion variation can occur in genetically identical yeast cells.

The embryo used to derive an ES cell is not genetically identical to the donor of the cell that is transformed into an iPS cell, so researchers expect some discrepancies in gene activity.

«We found that these corrected cells had a normal secretion kinetic when compared with their diseased, parental cells that are otherwise genetically identical except for this single DNA base,» explained lead author Andrew A. Wilson, MD, assistant professor of medicine at Boston University School of Medicine and Director of the Alpha - 1 Center at Bu and BMC.

In a previous study, Aldridge and her colleagues demonstrated that mycobacteria divide asymmetrically — despite being genetically identical, one of the two daughter cells will usually be longer and faster growing than its twin.

Since Emiliania huxleyi cells divide about once a day at the laboratory, a large number of genetically identical starting cultures were obtained from the isolate.

Mycobacteria can generate daughter cells through asymmetric growth, resulting in genetically identical, but physiologically diverse, populations.

«By using the patient's own skin cells, we should be able to generate transplantable OPCs that are genetically identical to the patient's natural OPCs,» Yang said.

No one thought that it would be possible to take a cell from an adult mammal and use it to grow another, genetically identical clone.

They then coaxed these induced pluripotent stem cells, which are genetically identical to the patients» cells, to develop into two separate groups of nerve cells: neurons and what are called astroglial cells.

The egg cell grew into a normal frog, genetically identical to the tadpole.

The main aim of our research is to understand how the cell division process gives rise to two genetically identical daughter cells.

Only a small subpopulation of cells are capable of picking up DNA, a state known as «competence,» at any given time, even when the cells are genetically identical and grown under the same conditions.

After chromosome segregation, the cell creates a cleavage site in between the two segregating genomes, resulting in the generation of two distinct but genetically identical daughter cells.

The investigators could compare the insulin - producing beta cells from these mice with those from younger, genetically identical mice to examine the characteristics of the cells across the mouse lifespan.