Sentences with phrase «transferred nucleus»

Although the transferred nucleus isn't adequately reprogrammed to make an animal, it can be tested to see if it functions well enough to make a line of stem cells.

But PPL's Irina Polejaeva then added a second nuclear transfer to the cloning protocol: As soon as the transferred nucleus expanded, as it typically does, the PPL team removed that nucleus once again and placed it in another egg cell that had just been fertilized.

The transferred nucleus can be added to an existing cell nucleus — fusing the two genomes and potentially creating a new species.

The resulting lamb was, as expected, an exact genetic copy, or clone, of the sheep that provided the transferred nucleus, not of those that provided the egg.

The three - parent technique involves transferring the nucleus of this embryo into another woman's enucleated ovum.

It involves transferring the nucleus of the mother's egg or fertilised embryo into an egg from an unrelated donor.

Other researchers have previously cloned animals, including mammals, by transferring nuclei from embryonic cells into such enucleated eggs.

The patent gives California - based Geron Corp. exclusive rights to animal embryos prepared by transferring the nucleus of a quiescent diploid donor cell into a suitable recipient cell up to and including the blastocyst stage.

But the next step — transferring the nucleus — was different; rather than fusing the donor cell with the enucleated egg cell, the team removed the donor nucleus with a very fine needle and injected it into the donor egg.

Like Dolly's creators in Scotland, Don Wolf of Portland's Oregon Health Sciences University and his colleagues transferred the nuclei from donor cells to eggs whose own DNA had been removed.

The researchers then transferred nuclei from nearly 1900 of the cultured cells into egg cells whose nuclei had been removed, eventually producing six calves.

The new finding brings a measure of closure to a story that first rocked the science world in February 2004, when Hwang and colleagues at Seoul National University announced they had cloned a female donor's cell by transferring its nucleus into one of her egg cells stripped of its nucleus in a procedure known as somatic cell nuclear transfer (SCNT), and harvested embryonic stem cells from the resulting fusion.

Taking up this challenge, a team at Rudolf Jaenisch's lab at the Massachusetts Institute of Technology transferred the nuclei of olfactory neurons into egg cells whose nuclei had been removed.

In their initial experiments, Hwang and his colleagues used cells from a single donor to try to create embryonic clones; they transferred nuclei from ovarian cells back into the donors» own oocytes.

It does, however, permit transferring the nucleus of one cell to an unfertilized egg with the nucleus removed.

They transferred nuclei from very early embryos — at the so - called blastula stage — into eggs from which they had removed the nuclei.

On the other hand, if you transfer the nucleus of a malignant cell into the cytoplasm, which, again, is where the mitochondria is, of a healthy cell, then the tumor potential of that initially malignant cell is inhibited.

Not exact matches

Once you've accepted the moral validity of IVF, what is the added harm of transferring the zygote's nucleus into a different enucleated egg?

OAR proponents claim that when the altered donor - cell nucleus with its activated nanog gene is transferred to the enucleated oocyte (egg cell), the presence of nanog will immediately convert the enucleated egg cell to a pluripotent cell, without ever forming a zygote.

The OAR proposal uses a variation of therapeutic cloning called altered nuclear transfer (ANT) in which the nucleus of a donor cell (a skin cell, for example), containing the 30,000 genes of the genetic code, is altered in such a way that it produces an epigenetic factor, a protein called nanog.

The usual pattern has been for a new church to be formed with a nucleus of Christian Reformed people whom industry has transferred to an area in which there is no existing CRC congregation.

We will surely allow galindo, ajayi ryo and diaby to leave on free transfers, and possibly arteta and rosicky, but the likes of flamini, debuchy, Jenkinson, podolski campbell and sanogo could bring in much needed extra funds whilst not really damaging the nucleus of the squad.

In this process, the nucleus of a donor adult cell is transferred to an egg whose nucleus, and thus its genetic material, has been removed.

In somatic cell nuclear transfer, a nucleus from a mature body cell is transplanted into an egg cell without a nucleus.

With an egg where the cytoplasm surrounding a nucleus isn't good, we can take the nucleus and transfer it into a healthy donor egg.

To solve this, West proposed «therapeutic cloning» — taking the nucleus out of a patient's cell, transferring it into an egg cell to create a cloned embryo, then using that embryo to derive patient - matched stem - cell lines.

This is because genetic material from chloroplasts has been continuously transferring to the nucleus through years of evolution.

This maneuver «froze» the cells in a quiescent phase of their division cycle and may have made their chromosomes more susceptible to being reprogrammed to initiate the growth of a new organism after the nuclei were transferred into an egg.

The nuclei are inserted into egg cells which have had their original nucleus removed, a process called nuclear transfer.

The paper reports new details about the procedure, such as the method used to transfer the mitochondria: freezing and heating the embryo before using an electrical pulse to fuse the mother's nucleus into the donor egg.

During the collisions, both the excess neutrons can be transferred to the nickel nuclei, resulting in the creation of nickel - 66, the basic shape of which is almost an ideal sphere.

The method, called somatic cell nuclear transfer (SCNT), replaces the DNA in an egg cell's nucleus with the genetic material from the nucleus of a skin cell, then tricks the egg cell to start dividing as if it had been fertilized with sperm.

Before Katlyn showed up at NIH, the doctors there were already well prepared: They had inserted healthy human ADA genes into a modified mouse retrovirus — a type of virus that can enter human cells and transfer new genetic material right into the DNA strands in their nuclei.

The researchers expected that nuclei transferred from stem cells would be the best in creating clones.

The scientists starved the cells into quiescence, then transferred their DNA - carrying nuclei into egg cells stripped of their own nuclei.

Cytoplasmic transfer involves injecting a bit of cytoplasm — the jellylike substance that surrounds the nucleus of an egg — from a healthy donor egg into the egg of an infertile woman before the egg is fertilized.

A nucleus extracted from such cells could be transferred to an egg cell emptied of its own DNA to create an embryo and ultimately to bring new life into the world.

Scientists managed to transfer the extinct frog's nuclei into the egg cells of a barred frog (right), but so far, the embryos have yet to fully develop.

Chemin and his colleagues, meanwhile, have shown that the interaction can go both ways: In the 28 August Physical Review Letters, they report that tellurium nuclei primed with the right amount of energy can transfer it to electrons, which in turn give up photons.

Zhong Zhong and Hua Hua are the product of somatic cell nuclear transfer (SCNT), the technique used to create Dolly the sheep over 20 years ago, in which researchers remove the nucleus from an egg cell and replace it with another nucleus from differentiated body cells.

Although in rare cases mitochondrial genes may be transferred to the nucleus of a cell, she said the IU team found no evidence to suggest this is the case in V. scurruloideum, and that further investigation will be required to reveal the exact mechanism through which the species compensates for its missing genes.

The genetic copy is not exact, because something called mitochondrial DNA, separate from the nucleus, remains in the egg receiving the transfer.

«We envision highly enhanced NMR of liquids and solids using existing polarization transfer techniques, such as cross-polarization in solids and cross-relaxation in liquids, or direct dynamic nuclear polarization to outside nuclei from NV centers,» King says, noting that such transfer of polarization to solid surface and liquids had been previously demonstrated by the Pines group using laser polarized Xe - 129.

Lovett and his colleagues have shown that quantum information can be transferred from an electron's spin to the spin of an atomic nucleus, where it can be stored more effectively — creating a form of «quantum memory».

In somatic cell transfer, the nucleus of an egg is replaced with the nucleus from another cell that contains the full genetic information of an individual.

After many attempts, CC was created by coaxing the nucleus of a cell from a calico cat into an enucleated egg; an electrical spark prompted the hybrid to divide, and the resulting embryo was then transferred into a surrogate mother.

That was enough time for the team to transfer new nuclei into dozens of egg cells.

This plasticity is thought to make their nuclei more susceptible to being reprogrammed when transferred to an egg.

But the favored reprogramming technique, somatic cell nuclear transfer (SCNT), otherwise known as research cloning, is fraught with ethical pitfalls as well as technical difficulties because it entails creating a human embryo by inserting an adult cell nucleus into an ooctye.

They transferred a treated nucleus into a cow egg cell, which was fertilised and implanted into another cow.