Navigation Links
Needling Chromosomes Reveals Cell Division Secret

ould result in broken needles, stretched chromatids or ripped-apart cells. However, he said, Paliulis mastered the delicate technique and performed numerous experiments pulling the chromatids apart at different points along their length and at different times during cell division. The experiments revealed that the chromatids are attached to one another, but that they initially separate at their centers, zipping apart until they are entirely separate. Then, they can be drawn to the opposite poles of the dividing cell. The experiments also revealed that it is the erosion of linkages between the chromatids, and not any tension exerted by the spindle, that causes the chromatids to separate. Also intriguing, found the researchers, was that the chromatids mysteriously remained stuck to one another at a time when biochemical analysis could not detect any cohesin proteins in the cell. Nicklas believes that the twin chromatids may still have some entanglements between the corresponding DNA strands on each chromatid. DNA, which makes up genes in the cell, replicates itself as a central process in chromosome duplication. "So, we’re left with the mystery of what molecules hold the chromatids together at this point in cell division,?Nicklas said. "But that’s the usual outcome of work in my laboratory and a sign that we're doing good science since we raise new questions. We lay the mechanistic groundwork for the molecular explanations that have to be made. So, our colleagues who do molecular work are both provoked and challenged by us," he said.
'"/>

Source:DUKE news


Page: 1 2 3

Related biology news :

1. NYU Study Reveals How Brains Immune System Fights Viral Encephalitis
2. Weill Cornell Research Reveals Secrets Of Trafficking Within Cells
3. Research Using Mouse Models Reveals A Novel Key Player In The Initiation Of Colon Cancer
4. Research Reveals Functions Of Harmful Shellfish Pathogens
5. Brain Scan Study of Smokers Reveals Signature of Craving
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Needling Chromosomes Reveals Cell Division Secret

(Date:7/30/2014)... decisions about what they eat, the Food and Drug ... the Nutrition Facts label found on nearly every food ... & Engineering News (C&EN), the weekly news magazine ... and the fight that has ensued. , Britt ... while the Nutrition Facts label has remained largely the ...
(Date:7/30/2014)... of major interest in neuroscience. A large number ... stages of Wallerian degeneration: transcription factor activation, immune ... expression responses in the distal segment of the ... differences in gene expression between the proximal and ... co-workers from Nantong University, China used microarrays to ...
(Date:7/30/2014)... SAN JOSE, Calif. , July 30, 2014 ... industry-academia partnership with the United States Air Force ... project proposed by Binghamton ... for human performance monitoring (HPM). The $425,000 project, ... and electronics packaging firm i3 Electronics, Inc. ( ...
Breaking Biology News(10 mins):Nano-Bio Manufacturing Consortium Awards Funding to Binghamton University for Development of Electronics and Biometric Sensor Platforms 2Nano-Bio Manufacturing Consortium Awards Funding to Binghamton University for Development of Electronics and Biometric Sensor Platforms 3
... Queen Mary, University of London reveals the many difficulties faced ... with diabetes have to invest a great deal of time ... monitoring the level of sugar in their blood, organising their ... such as negotiating relatives, input and gaining access to doctors ...
... Ottawa, Ontario (April 10, 2012) Researchers have ... childbearing age are still not achieving a folate concentration considered ... tube defects, despite a virtual absence of folate deficiency in ... nation-wide study, they found a main reason why some women ...
... to achieve goals set by the federal government for reducing ... need to eliminate an average of 64 excess calories per ... American Journal of Preventive Medicine . This reduction could ... both. Without this reduction, the authors predict that the average ...
Cached Biology News:Approach to diabetes self-management too narrow, study suggests 2Approach to diabetes self-management too narrow, study suggests 3How many calories does it take to reach childhood obesity prevention goals? 2How many calories does it take to reach childhood obesity prevention goals? 3
(Date:7/30/2014)... Ltd. today released new data on changes in the ... outbreaks, the mean Ebola Reston gene Replikin Count (number ... 2002 was 1.1; the mean Replikin Count increased twofold ... thus predicting the current outbreaks in humans. ... be able to predict outbreaks (1).  For example, increases ...
(Date:7/30/2014)... 2014   Wyle has been named ... Mission Support Services (FILMSS) contract awarded by the ... terms of the contract, Wyle will provide mission ... Calif. In particular, Wyle will provide program and ... on the International Space Station and collaborative science ...
(Date:7/30/2014)... Vycom announces the addition of Thermax PVC ... Factory Mutual (FM) 4910 fire propagation and smoke generation ... process tools, fume hoods, furniture and cabinetry. These criteria ... wafers used in electronic chip manufacturing. , ... excellent workability and superior aesthetics. It is available in ...
(Date:7/30/2014)... , July 30, 2014 Researchers ... to interrogate biology, but such devices can do ... As such, researchers have looked to ... in vitro metabolic engineering to characterize – ... chip. New devices are envisioned to recreate animal ...
Breaking Biology Technology:Wyle Wins NASA's Fully Integrated Lifecycle Mission Support Services Contract 2Vycom Announces Flametec® Thermax PVC (FM4910 Listed) For a Variety of Clean Room Applications with Excellent Workability and Aesthetics 2UMD Researchers Bridge Gap between Microelectronics, Biological Systems 2UMD Researchers Bridge Gap between Microelectronics, Biological Systems 3UMD Researchers Bridge Gap between Microelectronics, Biological Systems 4
... 24 Favrille, Inc. (OTC,Bulletin Board: FVRL) announced today ... a reverse merger whereby Favrille would acquire,all of the ... a stock for stock merger that would result in ... transaction is,consummated on the terms set forth in the ...
... a 100% organic toxic mold remedy for mold remediation professionals and ... technology used effectively in the aftermath of the flooding in Katrina. ... ... 2008 -- Organic Environmental Technology ( http://www.organicet.com ) announced today the ...
... just five years after Jim Rider, the first American patient to ... American patient milestone. , ... Bremen, Germany (PRWEB) October ... getting worse, and the knowledge that many treatments are just not ...
Cached Biology Technology:Favrille Announces Execution of Non-binding Term Sheet for a Merger Transaction 2Katrina Proven Certified Organic Toxic Mold Remedy Now Available for Mold Remediation Professionals and Homeowners 2Katrina Proven Certified Organic Toxic Mold Remedy Now Available for Mold Remediation Professionals and Homeowners 3Katrina Proven Certified Organic Toxic Mold Remedy Now Available for Mold Remediation Professionals and Homeowners 4Stenum Hospital Does its 600th American Disc Replacement Surgery 2
... in refrigerators, freezers, or liquid nitrogen. Conveniently sized to ... color coding to project, user, lab, etc. Holes in ... air circulation. Supplied with 10 x 10 (11.6 mm ... dimensions: 13 x 13 x 5.1 cm H (5 ...
Sterile glass 5 mm beads that make spreading bacterial and yeast cultures easy. Can be washed, autoclaved and reused....
Recombinant Rhesus Monkey IFN-Alpha...
REGULATED IN DEVELOPMENT AND DNA DAMAGE RESPONSES 1,HIF-1 responsive RTP801...
Biology Products: