Sentences with phrase «egg cells through»

It may seem like an arcane debate, but it has life - and - death ramifications every day, when IVF practitioners peer at egg cells through microscopes and try to predict the fate of the embryos they might become.

The journey from a single fertilised egg cell through to a baby delivered crying into the arms of its mother is one of the most beautiful and complex processes to occur in nature.

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.

Philippa Taylor explained why she thought it was an encouraging discovery: «There could be real benefits for some people, particularly young girls or people who are going through cancer treatment or chemotherapy and that destroys any chance of having their own eggs and growing eggs cells so if you can remove ovarian tissue, grow some egg cells outside the womb and implant them after the treatment then that could be very positive.»

Most chromosomal abnormalities are the cause of a damaged egg or sperm cell or are due to a problem at the time that the zygote went through the division process.»

When the mature eggs, which have been retrieved from a woman's ovaries, have been successfully fertilized the resulting embryos begin to develop through rapid cell division.

The feeding tubes growing out from the follicle cells have to punch their way through the wall to reach the egg.

It is known that the egg gets its food from little arm - like feeding tubes (called filopodia) that jut out from tiny cells surrounding the egg and must poke through a thick wall coating the egg in order to feed it.

Some scientists, such as Kevin Eggan at Harvard, were disappointed that NIH didn't open the door to the use of embryos created for research purposes — including through somatic cell nuclear transfer (cloning) and parthenogenesis (from an unfertilized egg).

Stem cell researchers call them «a major step in the right direction,» although some were disappointed that NIH didn't open the door to the use of embryos created for research purposes — including through somatic cell nuclear transfer (cloning) and parthenogenesis (from an unfertilized egg).

Immature egg cells begin this way, but are transformed through a process called meiosis into mature egg cells that only have one copy of each chromosome.

ICSI involves selecting a single viable sperm cell that is then injected into the egg through a needle.

What's come out in recent years are findings that experiences in an adult organism can, through epigenetic modifications in the sperm and egg cells, be passed onto subsequent generations, leading to some provocative notions.

But the summit's organizers concluded that actually trying to produce a human pregnancy from such modified germ cells or embryos, either through in vitro fertilization (IVF) with the sperm or eggs or the implantation of an embryo, is currently «irresponsible» because of ongoing safety concerns and a lack of societal consensus.

Egg - cell of a female fruit fly with the egg cell in which H3K27me3 was made visible through green stainiEgg - cell of a female fruit fly with the egg cell in which H3K27me3 was made visible through green stainiegg cell in which H3K27me3 was made visible through green staining.

When added to the lower layer, the sperm cell swims through the opening and adheres to, fuses with, and fertilizes the egg.

Unlike Van Blerkom, who has regular access to human eggs and embryos through his IVF - related work, Albertini works primarily with mouse and primate cells.

When a sperm cell meets an egg cell (the oocyte), it burrows through the thick outer rind surrounding the egg (the zona pellucida), enters the internal cytoplasm of the egg (the ooplasm), and locomotes its male DNA — half of the typical number of chromosomes — to the female half within about three to four hours.

Through a series of elaborate experiments with mice, Albertini and his colleagues at Tufts have shown that the small cells bunched around an egg cell in the follicles are not mere microscopic groupies.

The acquisition of so much cellular material from its sisters almost certainly helps the egg start a program of growth through which it becomes the largest cell in the mammalian body.

Sperm racing to fertilize an egg face numerous hurdles, including burrowing through the zona pellucida, a thick wall surrounding the cell membrane.

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).

Through whole - genome sequencing of individual egg cells, the new method detects chromosomal abnormalities and DNA sequence variations associated with genetic disorders.

These include in vitro editing of primordial germ cells that are subsequently transmitted through germ - line chimeras to produce genome edited offspring, and direct injections to developing embryos, creating germ - line chimeras in ovo (in the egg), which can then be bred to produce genome edited offspring.

While many important developments impacted the field, two that garnered significant public, political and scientific attention in 2016 were the proliferation of clinics using unproven stem cell «therapies,» and the steps forward in therapeutic modification of human oocytes (unfertilized eggs) through a process called mitochondrial replacement therapy (MRT).

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