News tagged with genetic complexity
Research reveals novel transport mechanism for large ribonucleoproteins
The movement of genetic materials, such as RNA and ribosomes, from the nucleus to the cytoplasm is a critical component in a cell's ability to make the proteins necessary for essential biological functions. Until now, it ...
May 10, 2012 |
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Using math to feed the world
In the race to breed better crops to feed the increasing world population, scientists at The University of Nottingham are using maths to find out how a vital plant hormone affects growth.
Apr 17, 2012 |
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Study identifies a key molecular switch for telomere extension by telomerase
Researchers at the University of Illinois at Chicago College of Medicine describe for the first time a key target of DNA damage checkpoint enzymes that must be chemically modified to enable stable maintenance of chromosome ...
Nov 23, 2011 |
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Pairing up: How chromosomes find each other
After more than a century of study, mysteries still remain about the process of meiosis -- a special type of cell division that helps insure genetic diversity in sexually-reproducing organisms. Now, researchers ...
Nov 01, 2011 |
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Xenacoelomorpha -- a new phylum in the animal kingdom
An international team of scientists including Albert Poustka from the Max Planck Institute for Molecular Genetics in Berlin has discovered that Xenoturbellida and the acoelomorph worms, both simple marine ...
Feb 16, 2011 |
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Study shows how stress causes extensive genetic rewriting
(PhysOrg.com) -- A team of scientists in the United States, South Korea, and Switzerland has uncovered a vast, complex network of 160,000 genetic interactions within yeast cells that changes dramatically when the cells are ...
Jan 12, 2011 |
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Complexity not so costly after all, analysis shows
The more complex a plant or animal, the more difficulty it should have adapting to changes in the environment. That's been a maxim of evolutionary theory since biologist Ronald Fisher put forth the idea in 1930.
Sep 27, 2010 |
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Quantum dots track who gets into cell nucleus
(PhysOrg.com) -- UC Berkeley researchers Karsten Weis, Jan Liphardt, and colleagues have used fluorescent probes called quantum dots to determine which molecules get into the nucleus via its nano-pores and ...
Nanotechnology / Bio & Medicine
Sep 02, 2010 |
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Discovery leads to rapid mouse 'personalized trials' in breast cancer
One person's breast cancer is not the same as another person's, because the gene mutations differ in each tumor. That makes it difficult to match the best therapy with the individual patient.
Sep 04, 2009 |
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A global model for the origin of species independent of geographical isolation
(PhysOrg.com) -- The tremendous diversity of life continues to puzzle scientists, long after the 200 years since Charles Darwin's birth. However, in recent years, consistent patterns of biodiversity have been identified ...
Jul 17, 2009 |
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Research suggests core nuclear pore elements shared by all eukaryotes
(PhysOrg.com) -- For perhaps 1.8 billion years after life first emerged on Earth, a sort of evolutionary writer’s block stalled the development of organisms more complicated than single cells. Then, a burst of experimental ...
Jul 13, 2009 |
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SUMO protein guides chromatin remodeler to suppress genes
In an in vitro study, led by Grace Gill, PhD, Tufts University School of Medicine, researchers discovered how a protein called SUMO (Small Ubiquitin-related Modifier) guides an enzyme complex that alters the structure of ...
Medicine & Health / Medical research
Apr 27, 2009 |
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Protein complex shown to play pivotal role in stem cell development in 2 Stanford studies
Scientists at the Stanford University School of Medicine have identified a protein complex important in controlling whether embryonic stem cells retain their ability to become any cell in the body — a quality called pluripotency ...
Medicine & Health / Medical research
Mar 02, 2009 |
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