Sentences with phrase «into egg cells»

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.

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 researchers injected the sperm into egg cells.

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.

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

To create cloned mice, the team inserted nuclei from so - called cumulus cells, which surround the ovary, into egg cells, or oocytes, without nuclei.

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

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

During that process, chromosomes pairs get drawn apart and duplicated, but only one of the four resulting chromosomes will make it into the egg cell; the others are destroyed.

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.

In a one - in - a-million event, only slightly more likely than running into a flying reindeer, the coral DNA might have moved from her blood into a virus - like genetic element that transferred it into the egg cell that formed Rudolph.

In gymnosperms, wind deposits a pollen grain on an exposed egg cell, and then the pollen tube — growing at the slow rate of 20 micrometers an hour — releases an enzyme that destroys any tissue blocking the sperm's entrance into the egg cell.

While assisted reproductive techniques such as intracytoplasmic sperm injection (ICSI)-- which involves the direct injection of sperm into the egg cell — can overcome head or tail abnormalities in sperm, recent animal research suggests that fertility doctors must use these techniques with care.

In his team's study, the most dramatic rebound in carried - over mtDNA occurred when the nucleus of a woman with mitochondria common among Europeans was inserted into the egg cell of a woman with mitochondria usually found in people with African ancestry.

One way to create such cells is through somatic cell nuclear transfer (SCNT), in which the nucleus of a patient's cell is inserted into an egg cell from which most of the DNA has been removed (ScienceNOW, 19 June).

Not exact matches

After the woman's eggs have been retrieved through the normal IVF protocol and are ready for fertilization, the mitochondria taken from her stem cells are injected into an egg along with a sperm cell.

Debate the time all you want but don't pull this «well i think it's a child as soon as the sperm works it's way into the egg because I believe in God and I think he gives the mass of cell's a soul» bull shlt.

This term refers to everything from a newly fertilized single - celled egg to millions of cells organized into eyelids, ears, genitals, and limbs.

Then, the DNA would be removed from an oocyte (an egg cell) and this enucleated oocyte fused to the altered adult cell» creating a new cell that is neither an oocyte nor an adult cell but a hybrid exhibiting the properties programmed into it by the alterations made to the adult - cell nucleus.

Cloning requires the insertion of a cell nucleus into a denucleated egg, and perfecting human SCNT techniques will require much trial and error, meaning a potential vertical spike in demand.

The egg then grew into an early - stage embryo whose stem cells, a genetic copy of the original, were then harvested.

The first thing the egg cell does is to begin dividing into many cells.

Month One: Microscopic Tube Mom's fertilized egg divides into two, then four, eight, sixteen cells and so on, multiplying at an ever increasing rate into billions and billions.

If the egg is fertilized by a sperm cell, it stays in the uterus and grows into a baby, using that extra blood and tissue to keep it healthy and protected as it's developing.

Conjoined twins form when your fertilized egg does not split completely into two separate balls of cells.

Meanwhile, seven or eight days after a sperm fertilizes an egg in week 4 of pregnancy, a mass of cells — the earliest form of an embryo — implants into the wall of the uterus.

It is where the fertilised egg is implanted after which the cells develop into a fetus and finally into a baby who will be born after nine months.

If the egg gets to the uterus and is fertilized by a sperm cell, it may plant itself in that lining and grow into a baby.

Within about three days after conception, the fertilized egg is dividing very fast into many cells.

This ancient theory, recounted by Pliny the Elder, is one of the many bizarre early attempts to explain one of life's greatest mysteries — how a nearly uniform egg cell develops into an animal with dozens of types of cells, each in its proper place.

Previous failures in reprogramming primate cells probably happened because the egg ran into roadblocks — portions of the body cell's DNA known as reprogramming - resistant regions, say study coauthor Mu - ming Poo, director of the Institute of Neuroscience at the Chinese Academy of Sciences in Shanghai, and his colleagues.

That was the dogma until a few years ago, when a group at Massachusetts General Hospital in Boston discovered stem cells tucked away in the protective lining of the ovary that mature into fresh eggs.

One daughter centriole is also dragged into a polar body, leaving the other daughter centriole alone in the egg cell.

Female mammals are born with millions of dormant eggs, but only a small fraction ever mature into cells with reproductive potential.

In the paper, published in the now - defunct online journal e-biomed, West, Lanza and their colleagues showed that they could pull a nucleus from a human egg cell, replace it with a whole adult ovarian cell and generate an embryo that divided into six cells.

The RNA molecules intermingle on a threadlike network that allows them to move from one nurse cell to another and then into the developing egg (which we don't see in this image).

She found that the egg cell expels the two mother centrioles, jettisoning them into the two «polar bodies» that also serve as dumps for its surplus genetic material.

The film depicts several sperm attempting to fertilize the egg, «zooms in» on one sperm's tail to show how the dynein proteins move in sync to cause the tail to bend and flex, and ends with the sperm's successful journey into the egg and the initiation of cell division that will ultimately create a new organism.

Once home, the cells proliferated and matured into viable eggs and sperm.

Preserving spermatogonia, the specialized cells that can grow into sperm or eggs, is possible, but the question is whether it would create the desired fish.

By injecting specialized trout sex cells into sterilized but otherwise healthy salmon embryos, Japanese scientists wound up with male salmon that ejected trout milt (semen) and female salmon bearing trout eggs.

Fishel's team filmed 88 newly fertilised eggs from 69 couples in their incubator until they become blastocysts — the small ball of cells that is implanted into the womb.

Fraudulent cloned cells were likely the first example of a human egg turned directly into stem cells

The modified cell nuclei were then inserted into unfertilized eggs to create engineered pig embryos, which were implanted in a normal sow.

Reproductive cells, such as an egg and sperm, join to form stem cells that can mature into any tissue type.

To create an egg, a progenitor cell called an oocyte divides into two daughter cells: a hulking egg cell and a wimpy polar body.

But researchers reporting online April 14 in Nature Cell Biology claim they have found precursor stem cells in newborn and adult mice that could be prodded into producing new eggs.

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.

In the initial work at the Roslin Institute, the egg cells along with their transplanted nuclei were then implanted directly into a foster mother, where they developed and, in the case of Dolly, resulted in a viable offspring.

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