Embryo
hideAn embryo (irregularly from Greek: ἔμβρυον, plural ἔμβρυα, lit. "that which grows," from en- "in" + bryein "to swell, be full"; the proper Latinate form would be embryum) is a multicellular diploid eukaryote in its earliest stage of development, from the time of first cell division until birth, hatching, or germination. In humans, it is called an embryo until about eight weeks after fertilization (i.e. ten weeks LMP), and from then it is instead called a fetus.
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News tagged with human embryos
SKorea seeks jail for disgraced cloning scientist
Aug 24, 2009 |
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(AP) -- Prosecutors demanded a four-year prison term Monday for a South Korean scientist disgraced in a cloning scandal that shook the international scientific community and led to his trial on fraud and ...
US finalizes stem cell research guidelines
Jul 07, 2009 |
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The US government on Monday unveiled final rules for embryonic stem cell research, laying out ground rules for "ethically responsible, scientifically worthy" studies eligible for federal funds.
Fertility doctor says he's on the brink of cloning human: report
Apr 22, 2009 |
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A US-based fertility doctor claimed to have cloned 14 human embryos and transferred 11 of them into the wombs of four women in an interview published Wednesday.
New battle lines drawn on stem cells
Mar 16, 2009 |
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Faced with a new federal policy that opens the door for more embryonic stem cell research, conservatives have geared up for a political battle at the national and state level that goes to the core of their beliefs about the ...
Some states push back against stem cell research
Mar 11, 2009 |
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(AP) -- A showdown is shaping up in some of the nation's most conservative states over embryonic stem cell research, as opponents draw language and tactics from the battle over abortion to counter President ...
Obama to reverse Bush limits on stem-cell research
Mar 06, 2009 |
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US President Barack Obama will on Monday sign an executive order reversing Bush administration restrictions on federal funding for stem-cell research, a senior administration official said.
A mathematical method helps to select human embryos
Biology /
Feb 24, 2009 |
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A team of researchers from the University of the Basque Country (UPV-EHU) have developed a mathematical classification which makes it possible to select human embryos for use in assisted reproduction treatments. ...
Animal eggs not suitable substitutes to produce stem cells
Biology /
Feb 02, 2009 |
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Since the cloning of Dolly the Sheep over a decade ago, somatic cell nuclear transfer (SCNT) has been considered a promising way to generate human, patient-specific stem cells for therapeutic applications. The shortage of ...
Gene by gene, scientists dig for the triggers
Jan 02, 2009 |
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James Thomson knew that to send a cell back to its past was no trivial matter. Like generations of biologists, the University of Wisconsin-Madison stem cell pioneer had been taught that development was a one-way street; it ...
