Navigation Links
Stressed cells spark DNA repair missteps and speed evolution

, not affecting cells at all. Many are deleterious, resulting in cell death. But a small percentage is advantageous, allowing the cells to survive in an adverse environment.

The fact that the changes in the rate of mutation occur only in a certain physical space at a certain time gives the cells advantage because it reduces the risk to the whole colony. DNA breaks occur only rarely in each individual cell. If the mutations are restricted in time and space, it reduces the risk that the mistakes in repair will affect some other gene. It can also enhance the likelihood of two mutations occurring in the same gene or neighboring genes.

"This can speed evolution of complex protein machines." Rosenberg said.


'"/>

Source:Baylor College of Medicine


Page: 1 2

Related biology news :

1. Wisconsin scientists grow critical nerve cells
2. Spleen may be source of versatile stem cells
3. Researchers discover way to make cells in the eye sensitive to light
4. Priming embryonic stem cells to fulfill their promise
5. Lack of enzyme turns fat cells into fat burners
6. Poor prenatal nutrition permanently damages function of insulin-producing cells in the pancreas
7. Elusive HIV shape change revealed; Key clue to how virus infects cells
8. Mouse brain cells rapidly recover after Alzheimers plaques are cleared
9. Enzyme allows B cells to resist death, leading to leukemia
10. Scientists rid stem cell culture of key animal cells
11. Genetically modified natural killer immune cells attack, kill leukemia cells
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Stressed cells spark DNA repair missteps and speed evolution

(Date:4/23/2014)... a signing ceremony in Buenos Aires yesterday, Argentina ... an associate member state. The move strengthens the ... science communities. It grants Argentinian scientists access to ... beneficial collaborations. , "Ever since its inception, fostering ... have been at the core of EMBL,s mission," ...
(Date:4/23/2014)... Sophie Martin of the University of Lausanne, Switzerland, as ... award acknowledges her work to understand the molecular events ... , Martin has been working for the past 15 ... in which the spatial organization of cells contributes to ... years, she has been using fission yeast, which grow ...
(Date:4/23/2014)... a University of Exeter researcher has shed light on ... thriving in Australia,s remote outback have become reviled as ... Crowley, of the Environment and Sustainability Institute at the ... the camel in Australia, from their historic role helping ... status as unwelcome "invader." , The deserts of the ...
Breaking Biology News(10 mins):EMBO Gold Medal 2014 awarded to Sophie Martin 2How Australia got the hump with 1 million feral camels 2How Australia got the hump with 1 million feral camels 3
... Scientist Jiř Friml from VIB and Ghent University, ... the Krber European Science Award, worth 750 000 euro. ... pursuing particularly innovative research projects. Friml gets the prize ... plants. "Friml,s work on the genetic, molecular and ...
... consequences of emerging infectious diseases on crops in ... are often underestimated, according to a new study ... Institute of the Science of Food Production in ... international communities to establish better mechanisms for monitoring ...
... COLUMBIA, Mo. A University of Missouri doctoral student has ... to take some of the guesswork out of wetland identification. ... of Engineers, manual on wetlands identification is 143 pages long. ... wetlands aren,t always wet. One important tool is looking at ...
Cached Biology News:VIB-UGent scientist Jiri Friml receives Koerber European Science Award 2010 2Plant disease -- more than a crop killer 2Taking the guesswork out of soil classification 2Taking the guesswork out of soil classification 3
(Date:1/14/2014)... NY (PRWEB) January 14, 2014 EquitiesIQ, ... Alliqua, Inc. (OTCQB: ALQA). Alliqua is an emerging biomedical ... serve the wound care market. , Free report download: ... restructured with a seasoned management team and Board, which ...
(Date:1/14/2014)... Md. , Jan. 14, 2014  Organovo announced today ... the National Institutes of Health (NIH) to help scientists ... treatments to patients on a faster timeline. Organovo is ... (NCATS) and the National Eye Institute (NEI) to develop ...
(Date:1/14/2014)... 14, 2014 In recent years, growing ... methods in product development and promotion has led to ... mistrust, fueled by concerns about the insidious impact of ... of spectacular fines to the world’s biggest pharmas for ...
(Date:1/14/2014)... Global Record Systems, LLC, (GRS), a ... for patients, physicians, the biopharmaceutical industry, regulators, payers, ... signing of a three-year Research Collaboration Agreement (RCA) ... This initiative is designed to generate disruptive ...
Breaking Biology Technology:EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2
... N.C., March 25 TeleHealth Services, the ... solutions to hospitals, today announced that it has been ... system,s strategy to enhance the hospital stay for patients ... improving the hospital experience by being progressive and consumer ...
... /PRNewswire-FirstCall/ - Spectral Diagnostics Inc. (TSX:SDI), a company ... announced that the 29th International Symposium on Intensive ... March 24-27, 2009 will feature a key scientific ... include presentations from six thought leaders in the ...
... Senator Katherine Laforge. With stakes higher than they,ve ever been before, Batman ... America to OPEC forever. The message that Batman and Senator Katherine Laforge ... from OPEC and put an end to financing our own destruction. , ... (Vocus) March ...
Cached Biology Technology:TeleHealth Services and Lakeland HealthCare Connect to Create Outstanding Patient Experience 2TeleHealth Services and Lakeland HealthCare Connect to Create Outstanding Patient Experience 3Spectral announces presentations at the 29TH International Symposium on Intensive Care and Emergency Medicine focusing on the role of endotoxin 2Batman Teams with Senator Katherine Laforge to Help Free America from OPEC 2Batman Teams with Senator Katherine Laforge to Help Free America from OPEC 3Batman Teams with Senator Katherine Laforge to Help Free America from OPEC 4Batman Teams with Senator Katherine Laforge to Help Free America from OPEC 5
... leader in electroporation products and specialty electrodes, ... line for experiment optimization and large volume ... breakthrough in Molecular Delivery. The days of ... typically limited the number of samples and ...
... Sequencer 20 System revolutionizes DNA sequencing, delivering ... The Genome Sequencer 20 System includes: ... and consumables for library construction, amplification, and ... de novo assembly The ...
... and size analyzer offering a wide dynamic range. ... in mind. It is comprised of a chemically ... The system is completely computer controlled. The modular ... such as dry or where smaller volumes are ...
... Kit provides a fast and simple procedure for ... other detergents from small samples of protein. The ... resin as an ion exchanger. Each column is ... acidic or basic protein.A complete kit for acidic ...
Biology Products: