News tagged with embryos
Alan Turing's 1950s tiger stripe theory proved
Researchers from King's College London have provided the first experimental evidence confirming a great British mathematician's theory of how biological patterns such as tiger stripes or leopard spots are ...
Feb 19, 2012 |
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'Animal embryo' fossils are actually microbes (Update)
Tiny fossils that scientists have thought for decades were the embryos of the earliest animals ever found have turned out to be the remains of much simpler microbial organisms.
Other Sciences / Archaeology & Fossils
Dec 22, 2011 |
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Before animals first walked on land, fish carried gene program for limbs
Genetic instructions for developing limbs and digits were present in primitive fish millions of years before their descendants first crawled on to land, researchers have discovered.
Jul 11, 2011 |
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Baby born from embryo frozen almost 20 years ago
(PhysOrg.com) -- A healthy baby has been born from an embryo that was kept frozen for nearly 20 years, smashing the previous record of 13 years. The new baby is a biological sibling of a child born to the ...
Medicine & Health / Medical research
Oct 12, 2010 |
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Earlier, more accurate prediction of embryo survival enabled by Stanford research
Two-thirds of all human embryos fail to develop successfully. Now, in a new study, researchers at the Stanford University School of Medicine have shown that they can predict with 93 percent certainty which fertilized eggs ...
Oct 03, 2010 |
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Fish out of water: Gene clue to evolutionary step
Two genes controlling a tissue protein may have played a role in the key period when fish shed their fins and became limbed land-lovers, a study published by Nature on Thursday said.
Jun 24, 2010 |
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Scientists alter developing brain to resemble that of another species
Scientists at the Georgia Institute of Technology have found that by applying chemicals to manipulate genes in a developing embryo, they've been able to change the brain of one type of cichlid fish to resemble ...
May 03, 2010 |
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Scientists report first genome sequence of frog
A team of scientists led by the Department of Energy's Joint Genome Institute (JGI) and the University of California, Berkeley, is publishing this week the first genome sequence of an amphibian, the African ...
Apr 29, 2010 |
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Early spring means more bat girls
There must be something in the warm breeze. A study on bats by a University of Calgary researcher suggests that bats produce twice as many female babies as male ones in years when spring comes early.
May 05, 2012 |
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Stem cells poised to self-destruct for the good of the embryo
Embryonic stem cells — those revered cells that give rise to every cell type in the body — just got another badge of honor. If they suffer damage that makes them a threat to the developing embryo, ...
May 03, 2012 |
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Long-held genetic theory doesn't quite make the grade, biologists find
New York University biologists have discovered new mechanisms that control how proteins are expressed in different regions of embryos, while also shedding additional insight into how physical traits are arranged in body plans. ...
Apr 26, 2012 |
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First fruitful, then futile: Ammonites or the boon and bane of many offspring
Ammonites changed their reproductive strategy from initially few and large offspring to numerous and small hatchlings. Thanks to their many offspring, they survived three mass extinctions, a research team ...
Apr 23, 2012 |
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Egg-laying beginning of the end for dinosaurs
Their reproductive strategy spelled the beginning of the end: The fact that dinosaurs laid eggs put them at a considerable disadvantage compared to viviparous mammals. Together with colleagues from the Zoological ...
Other Sciences / Archaeology & Fossils
Apr 17, 2012 |
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International team unearths oldest-ever reptile embryos
Dating back 280 million years or so, the oldest known fossil reptile embryos have been unearthed in Uruguay and Brazil. They belong to the ancient aquatic reptiles, mesosaurs. The study of these exceptionally ...
Other Sciences / Archaeology & Fossils
Apr 12, 2012 |
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Seed size is controlled by maternally produced small RNAs: research
Seed size is controlled by small RNA molecules inherited from a plant's mother, a discovery from scientists at The University of Texas at Austin that has implications for agriculture and understanding plant ...
Apr 11, 2012 |
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Embryo
An 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.
For more information about Embryo, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
