News tagged with embryogenesis
Embryogenesis
Embryogenesis is the process by which the embryo is formed and develops, until it develops into a fetus.
Embryogenesis starts with the fertilization of the ovum (or egg) by sperm. The fertilized ovum is referred to as a zygote. The zygote undergoes rapid mitotic divisions with no significant growth (a process known as cleavage) and cellular differentiation, leading to development of an embryo.
Although embryogenesis occurs in both animal and plant development, this article addresses the common features among different animals, with some emphasis on the embryonic development of vertebrates and mammals.
For more information about Embryogenesis, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
Parental conflict in plants: Maternal factors silence paternal genes
In flowering plants, the beginning of embryogenesis is almost exclusively governed by maternal gene activity. Maternal factors regulate the development of the embryo and silence paternal genes during early ...
May 31, 2011 |
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Glowing spirals: Chemical scaffolds guide living cells into precisely defined three-dimensional patterns
(PhysOrg.com) -- To find our way, we use maps. Cells use "chemical maps" to find the way: they orient themselves by following concentration gradients of attractants or repellants. David H. Gracias and a team ...
Mar 07, 2011 |
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Following the Sugar Right From the Start: Researchers Image Glycans on Embryonic Cells Hours After Fertilization
(PhysOrg.com) -- Berkeley researchers successfully attached imaging probes to glycans - the sugar molecules that are abundant on the surfaces of living cells -- in the embryos of zebrafish less than seven ...
May 28, 2010 |
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Scientists uncover alternative pathway of microRNA generation
MicroRNAs are small bits of RNA within cells that wield enormous power. They influence virtually every biological process by controlling the "expression" of genes. Helping them in exerting this control is a unique class of ...
Medicine & Health / Medical research
Apr 28, 2010 |
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Study may aid efforts to prevent uncontrolled cell division in cancer
Researchers from the Ludwig Institute for Cancer Research at the University of California, San Diego School of Medicine have uncovered a remarkable property of the contractile ring, a structure required for cell division. ...
May 28, 2009 |
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