Sentences with phrase «fertilization of human eggs»
There were certain boundaries we wanted to erect: no pregnancy except to give birth to a child; no human embryos placed in animals for any reason; no fertilization of a human egg by animal sperm or the reverse; no buying or selling or patenting of human life at any stage; no child conceived except by the union of one egg and one sperm, both taken from adults.
http://discovermagazine.com/ Not exact matches
Along with being an artist and journalist, he taught himself mathematics and physics and developed his own lenses, including one for a microscope that was used to photograph the first images of human eggs in an in vitro fertilization program.
Researchers can see which human eggs are healthiest by their release of zinc, shown in halolike bursts in timelapse images, at fertilization.
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.
Although the statistics on the failure rate of human fertilization are not entirely robust, given the biological and ethical delicacy of conducting research in this area, the numbers consistently suggest that, at minimum, two - thirds of all human eggs fertilized during normal conception either fail to implant at the end of the first week or later spontaneously abort.
The 14 - judge panel ruled that the term «human embryo» in the European Patent Directive covers «any human ovum after fertilization» as well as the product of a nuclear transfer experiment or a parthenote — an unfertilized egg that is prompted to start dividing.
Fertilization in humans is initiated by binding of spermatozoa to a selectin ligand on the egg's extracellular matrix.
Switching topics now, as you may know, in vitro fertilization, or IVF, is the process of creating human embryos in a laboratory, by combining a sperm and an egg.