Sentences with phrase «embryos in a petri dish»
A team of developmental biologists led by Hans Schöler and Karen Hübner at the University of Pennsylvania placed densely packed clusters of stem cells from mouse embryos in a petri dish, using fetal calf serum as a growth medium and adding a gene protein that turns green when germ cells form.
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Their technique, which involves taking a woman's mature oocyte (egg) and fertilizing it with sperm in a petri dish to form an embryo, led to a U.K. woman's giving birth to the first «test tube baby» in 1978.
IVF is the process by which an egg is fertilized by sperm in a Petri dish that, if successful, results in (an) embryo (s) 3 - 5 days later.
After a few hours dividing in a Petri dish, researchers implanted the cloned embryo into a surrogate mother.
A quarter century ago, British physicians Robert Edwards and Patrick Steptoe faced condemnation when they added an egg to sperm in a petri dish and created an embryo that became Louise Brown.
«We've now devised a technology where we can effectively treat the surface of living mouse embryos as a petri dish of cells, and carry out genome wide screens on mouse cells in their native environment in vivo,» says Fuchs.
«We couldn't engineer human stomach tissue in a petri dish until we first identified how the stomach normally forms in the embryo,» explains Wells.
The testing process involved fitting the devices into a standard incubator and using dark field imaging to capture high resolution, single - plane pictures of embryos housed in a petri dish, at five - minute intervals.
Through Zernicka - Goetz's efforts, this process - essential to the formation of natural embryos - has now for the first time been successfully replicated in a petri dish.