News tagged with asymmetric cell
Oocytes: Going with the flow
Most cells rely on structural tethers to position chromosomes in preparation for cell division. Not so oocytes. Instead, a powerful intracellular stream pushes chromosomes far-off the center in preparation ...
Aug 28, 2011 |
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Live imaging puts new light on stem cell division
(PhysOrg.com) -- A long-held assumption about asymmetrical division of stem cells has cracked. Researchers at the University of Oregon report that the mitotic spindle does not act alone -- that cortical proteins ...
Sep 01, 2010 |
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Search results for asymmetric cell
Central nervous system stem cells shed light on mechanism that controls asymmetrical division
Animals consist of many distinct cell types, all of which originate during development from a single cell: the fertilized egg. To generate this vast cellular diversity, the egg and its descendants must divide ...
May 18, 2012 |
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A cell's first steps: Building a model to explain how cells grow
A collaboration between Lehigh University physicists and University of Miami biologists addresses an important fundamental question in basic cell biology: How do living cells figure out when and where to grow?
May 18, 2012 |
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Fly research gives insight into human stem cell development and cancer
Stem cells provide a recurring topic among the scientific presentations at the Genetics Society of America's 53rd Annual Drosophila Research Conference, March 7-11 at the Sheraton Chicago Hotel & Towers. Specifically, resear ...
Mar 08, 2012 |
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Sperm can count
The speed at which the calcium concentration in the cell changes controls the swimming behavior of sperm. They can calculate the calcium dynamics and react accordingly.
Mar 07, 2012 |
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NASA sees tropical storm Irina hit by wind shear, headed for Mozambique
The AIRS instrument on NASA's Aqua satellite provided forecasters with an infrared look at what was happening "under the hood" of Tropical Storm Irina's clouds and saw two reasons why it temporarily weakened ...
Space & Earth / Earth Sciences
Mar 02, 2012 |
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Researchers find energy storage 'solutions' in MetILs
(PhysOrg.com) -- Sandia researchers have developed a new family of liquid salt electrolytes, known as MetILs, that could lead to batteries able to cost-effectively store three times more energy than today’s ...
Technology / Energy & Green Tech
Feb 17, 2012 |
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Native forest birds in unprecedented trouble: researchers
Native birds at Hakalau Forest National Wildlife Refuge are in unprecedented trouble, according to a paper recently published in the journal PLoS ONE. The paper, titled "Changes in timing, duration, and symmetry of molt o ...
Jan 19, 2012 |
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How old yeast cells send off their daughter cells without the baggage of old age
The accumulation of damaged protein is a hallmark of aging that not even the humble baker's yeast can escape. Yet, aged yeast cells spawn off youthful daughter cells without any of the telltale protein clumps. ...
Nov 23, 2011 |
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Intestinal stem cells respond to food by supersizing the gut
A new study from University of California, Berkeley, researchers demonstrates that adult stem cells can reshape our organs in response to changes in the body and the environment, a finding that could have ...
Oct 27, 2011 |
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Do bacteria age? Biologists discover the answer follows simple economics
When a bacterial cell divides into two daughter cells and those two cells divide into four more daughters, then 8, then 16 and so on, the result, biologists have long assumed, is an eternally youthful population of bacteria. ...
Oct 27, 2011 |
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List of search results for asymmetric cell
