Sentences with phrase «out of the egg cell»

Xi says part of the trick is to suck a minuscule amount of cytoplasm out of egg cells first to make room for the injected bacteria and prevent cells from bursting.

Not exact matches

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.

A process that wipes egg and sperm cells clean misses some genes out, explaining how your bad habits may affect the DNA of your children and grandchildren

Every embryo begins as a single fertilized egg, which develops into a human body consisting of trillions of cells, each one specialized to carry out specific functions.

«Maybe at the one - cell or two - cell stage,» Eggan and his colleagues reasoned, «there's still some of that stuff in there...» And if they picked the right moment of cell division, when these powerful reprogramming factors were still floating around in the periphery of the cell, they might be able to use drugs to temporarily freeze the cell in the middle of division, stick in the needle of a micromanipulator to suck out the embryonic DNA, squirt in DNA from an adult animal, and then kick - start the process of reprogramming — hours, perhaps even days after an egg had been fertilized.

Varroa mites are external parasites that lay eggs in the brood cells within the hive and emerge attached to the host when the bee hatches out of its cell.

Such deceived eggs continue dividing into the blastocyst stage of 50 to 100 cells before petering out naturally.

Meanwhile, the Food and Drug Administration (FDA) has erected roadblocks in front of a fertility specialist and a stem cell biologist who want to clinically test a different IVF strategy: swapping out a woman's mitochondria by transferring chromosomes from her egg into an egg from another woman.

To make Dolly, researchers took the nucleus out of a mature egg and replaced it with the nucleus from a cell of the ewe they wanted to clone; then they activated development with electrical pulses and implanted the embryo into a surrogate mother ewe.

It gets stuck in the earliest stage of wormy development, making the same larval cells repeatedly while failing to form the organs and body parts needed for later life — including the vulva required to get the eggs out of its body.

The images depict what might be called embryology in flagrante: micrographs of sperm cells, trailing accordion - like pleats of white zags as they streak across a vast blue ocean of ooplasm; a multihued blastocyst in the process of hatching out of the egg's zona pellucida; and egg cells with a fringe of glowing, fate - determining proteins, looking a bit like a solar eclipse inside a cell.

Working with mice, Lei and Spradling set out to test their belief that certain undifferentiated germ cells learn to develop into eggs very early during their production in the ovary, when germ cells are found in small clusters of interconnected sister cells, all daughters of the same parent cell.

If the cells can be fertilized and develop into viable embryos, and if human ES cells turn out to have similar powers, such cells could allow researchers to get around some of the expense and ethical questions that arise from using donated eggs for therapeutic cloning experiments.

Developmental biologist Goro Yoshizaki of Tokyo University of Marine Science and Technology in Japan and his colleagues set out to see whether spermatogonia — male germ cells that give rise to sperm — might contain a subpopulation of cells with stem cell - like activity that can develop into either sperm or eggs.

The queen then sought out the larger cells and, on average, laid nearly three times as many drone eggs as usual, apparently making up for the skewed hive gender ratio that resulted from her incarceration, the researchers report in the November / December issue of Behavioural Ecology.

The researchers established cell lines from the original egg and in seven out of eight cases the amount of mutated mitochondrial DNA remained low when the cells were grown in the laboratory.

This result was similar to recently published data from the Egli lab in New York, which used an alternative technique, that of maternal spindle transfer or MST in eggs prior to fertilization, where they also had one aberrant ES cell line where this occurred (out of 8).

To make the tissues, the scientists crack open fertilized chicken eggs, pull fibroblasts and muscle cells out of the embryos» hearts, and mix them together with collagen.

Clear out your pores and get rid of dead skin cells with this gentle cleansing foam in the shape of an egg.

For estrogen shots to be effective, they must be given after the dog has released eggs from the ovary (evidenced by concentration of progesterone in blood greater than 4 - 10 ng / ml) but before she goes out of heat (evidenced by assessment of vaginal cells on a swab).

Millions and millions of sperm come out every time you ejaculate — but it only takes 1 sperm cell to meet with an egg for pregnancy to happen.