News tagged with companion cells
Scientists discover how 'companion' cells to sperm protect them from genetic damage
In plant pollen grains, sperm cells, which carry the genetic material to be passed on to progeny, are cocooned within larger "companion" cells that are called pollen vegetative cells. These companions provide sperm with ...
Biology /
Feb 05, 2009 |
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Search results for companion cells
Robots in the classroom
Tore Fløan smiles at me: “In the past we competed with European organizations, but now we have the Chinese breathing down our necks,” he says.
Apr 20, 2012 |
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Poachers may wipe out rhinos in S. Africa, campaigner warns
Rhinos will be wiped out from South Africa's wildlife parks by 2015 if poaching continues at its current rate, a campaigner fighting to save the beasts has warned.
Mar 18, 2012 |
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Under pressure: Ramp-compression smashes record
In the first university-based planetary science experiment at the National Ignition Facility (NIF), researchers have gradually compressed a diamond sample to a record pressure of 50 megabars (50 million times ...
Nov 11, 2011 |
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In search of virus fossils
Here's a theory for a comedian to consider: dinosaurs done-in by avian flu. Silly as that may be, we imagine that viruses have been infecting organisms since life first appeared on Earth, but this is mostly ...
Oct 19, 2011 |
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Study suggests methylation and gene sequence co-evolve in human-chimp evolutionary divergence
Scientists at Cold Spring Harbor Laboratory (CSHL) and the University of Southern California (USC) today published the first quantitative evidence supporting the notion that the genome-wide "bookmarking" of DNA with methyl ...
Sep 15, 2011 |
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NASA launching twin moon probes to measure gravity
Four decades after landing men on the moon, NASA is returning to Earth's orbiting companion, this time with a set of robotic twins that will measure lunar gravity while chasing one another in circles.
Space & Earth / Space Exploration
Sep 05, 2011 |
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Graphene's shining light could lead to super-fast Internet
Internet connection speeds could be tens of times faster than they currently are, thanks to research by University of Manchester scientists using wonder material graphene.
Nanotechnology / Nanomaterials
Aug 30, 2011 |
4.8 / 5 (19) |
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1st large-scale map of a plant's protein network addresses evolution, disease process
The eon-spanning clock of evolution – the millions of years that generally pass before organisms acquire new traits – belies a constant ferment in the chambers and channels of cells, as changes in genes and proteins ...
Jul 28, 2011 |
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Demonstrating the importance of dynamical systems theory
Two new papers in the Journal of General Physiology demonstrate the successes of using bifurcation theory and dynamical systems approaches to solve biological puzzles.
Jun 27, 2011 |
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Patent for arrays of nanoscale electrical probes awarded to NJIT today
Reginald C. Farrow and Zafer Iqbal, research professors at NJIT, were awarded a patent today for an improved method of fabricating arrays of nanoscale electrical probes. Their discovery may lead to improved diagnostic tools ...
Jun 21, 2011 |
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List of search results for companion cells
