Navigation Links
Physicist cracks women's random but always lucky choice of X chromosome

ready shown that at the key moment in this process both X chromosomes are brought close together within the cell. The Warwick researcher paper says that what happens next is that material for a "protein plug" then begins to gather around both of the XIST suicide genes on each X Chromosome. This starts a race between the two build ups of protein. Inevitably one of these two nascent protein plugs narrowly wins that race and reaches an energy state in which it can pull together all the material building up in both plugs into a single protein plug. That single plug then closes off one of the XIST suicide genes allowing its host X chromosome to continue to operate. However the other XIST suicide gene is now freed to activate and shuts down its X chromosome.

Since putting forward this explanation researchers in Harvard have observed actual plugs of protein shutting down X chromosome XIST genes in a manner giving further confirmation to Dr Nicodemi’s research. So the randomness is explained but what about researchers’ other concerns" Dr Nicodemi believes the randomness actually does give an evolutionary advantage. The mechanism means equal numbers of both the maternal and paternal X chromosome are preserved in the gene pool and the resultant population thus has more chance of surviving any biological threat targeted at a single version of the X chromosome.


'"/>

Source:University of Warwick


Page: 1 2

Related biology news :

1. Variation in womens X chromosomes may explain differences among individuals, between sexes
2. Of mice and mens (and womens) contraceptives
3. Heavy smoking cuts womens chance of pregnancy -- even with donated oocytes
4. When it comes to gene transcription, random pauses aren’t quite so random, study finds
5. Geckos: Its not always about sex
6. Study finds evolution doesnt always favor bigger animals
7. Survival of the selfless - scientists find cheats dont always prosper
8. When your brain talks, your muscles dont always listen
9. Vitamins: Science doesnt always match policy
10. The insect vector always bites twice
11. Childrens taste sensitivity and food choices influenced by taste gene
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Physicist cracks women random but always lucky choice chromosome

(Date:9/18/2014)... Sydney, September 18, 2014 Elsevier, a world-leading ... and services, and the Australasian Research Management Society ... young scientists at the 5th Scopus Young Researcher ... held earlier today at the National Convention Centre ... conference, was attended by guests representing Australia,s and ...
(Date:9/18/2014)... lives nestling in the protective tentacles of host anemones, ... travel hundreds of kilometres across the open ocean. Although ... been predicted, this is the first time that the ... been observed. , Dr Steve Simpson, Senior Lecturer in ... Exeter, and colleagues from the Australian Research Council Centre ...
(Date:9/17/2014)... 2000 as an EC-FP5 four-year project, delivering its first ... and successful participations in several EC projects, as a ... project (EU BON), to increase the general awareness ... extend the general dissemination of the Fauna Europaea results, ... applied its novel e-Publishing tools to prepare data papers ...
Breaking Biology News(10 mins):Elsevier and Australasian Research Management Society award scientists at Scopus ceremony 2Expedition finds Nemo can travel great distances to connect populations 2Expedition finds Nemo can travel great distances to connect populations 3Contributions on Fauna Europaea: Data papers as innovative model on expert involvement 2
... Md. Scientists have provided new details about how ... the blood cells needed for blood clotting. Katsue Suzuki-Inoue, ... Japan, and colleagues have identified for the first time ... a key role in cancer-induced platelet aggregation. These results ...
... the malaria mosquito uses to zero in on its ... an important step toward developing new and improved repellants ... threat of malaria, generally considered the most prevalent life-threatening ... maxillary palp. It is one of three structures extending ...
... has been developed at the Hebrew University Faculty of ... doctoral research at the university, Dr. Orit Bossi succeeded ... process by countering the breakdown of collagen fibers in ... supervision of Zecharia Madar, the Karl Bach Professor ...
Cached Biology News:How cancer spreads by aggregating platelets 2How cancer spreads by aggregating platelets 3Advance in effort to fight malaria by tricking the mosquito's sense of smell 2Advance in effort to fight malaria by tricking the mosquito's sense of smell 3Antioxidant to retard wrinkles discovered by Hebrew University researcher 2
(Date:9/17/2014)... 2014  PDL BioPharma, Inc. (PDL) (NASDAQ: PDLI ... Ernst & Young LLP ("EY") that it was resigning effective ... delivered to the Company on September 15, 2014 and reported ... PDL has issued the following statement in response ... of inquiries on the reason for the resignation of EY.  ...
(Date:9/17/2014)... -- The global consumption of squalene / squalane is expected ... skin-identical chemical that finds applications in various end user industries ... in other applications like high grade lubrication, and fiber coating ... players and is regionally segregated. Sophim ( France ... ( Japan ), SeaDragon Marine Oils Ltd. ( ...
(Date:9/17/2014)... TRIANGLE PARK, N.C. , Sept. 17, 2014 /PRNewswire/ ... and presentation topics that will be featured at the ... Hamner Conference Center on December 3 and 4, 2014. ... managers are invited to hear the following: ... PhD UC San Diego Skaggs School of ...
(Date:9/17/2014)... Shimadzu Scientific Instruments introduces ... which offers a powerful separation method for ... provides a new level of knowledge and ... to scientists analyzing pharmaceutical impurities, proteins, lipids, ... Comprehensive 2D-LC combines two independent separation modes ...
Breaking Biology Technology:PDL BioPharma Issues Statement on Resignation of Ernst and Young as Corporate Auditors 2PDL BioPharma Issues Statement on Resignation of Ernst and Young as Corporate Auditors 3Squalene Market by Source (Animal & Vegetable) & by End-user Industry (Cosmetics, Pharmaceuticals & Food Industry) - Global Trends & Forecasts to 2019 2Squalene Market by Source (Animal & Vegetable) & by End-user Industry (Cosmetics, Pharmaceuticals & Food Industry) - Global Trends & Forecasts to 2019 3In Silico Drug Discovery Conference Announces Speakers and Topics 2In Silico Drug Discovery Conference Announces Speakers and Topics 3In Silico Drug Discovery Conference Announces Speakers and Topics 4In Silico Drug Discovery Conference Announces Speakers and Topics 5In Silico Drug Discovery Conference Announces Speakers and Topics 6In Silico Drug Discovery Conference Announces Speakers and Topics 7Shimadzu’s New Nexera-e Two Dimensional Comprehensive Liquid Chromatograph Empowers Laboratories to Separate Even the Most Complex Mixtures 2
... 26 Amedica Corporation, an,orthopedic implants company focused ... U.S. Food and Drug Administration,has granted 510(k) marketing ... Valeo Pedicle Screw system is a low profile ... aimed at allowing surgeons,greater flexibility in the positioning ...
... (Nasdaq: GNTA ) announced today that the ... Warrell, Jr., will provide a,company overview and update ... Annual Healthcare Conference. Genta,s presentation is scheduled,for Wednesday, ... New York Palace Hotel,New York, NY., The ...
... International Limited, a UK,private company, announces MHRA ... based Phase IIB trial of AIMSPRO(R), its ... cross-over study will seek to,detect a beneficial ... Secondary,Progressive Multiple Sclerosis, following open-label observations over,several ...
Cached Biology Technology:Amedica Receives FDA 510(k) Clearance for Valeo(TM) Pedicle Screw System 2Genta Incorporated to Present at Lazard Capital Markets 4th Annual Healthcare Conference 2Genta Incorporated to Present at Lazard Capital Markets 4th Annual Healthcare Conference 3
The external laser upgrade for the Molecular Imager FX adds a 635 nm external laser; the 555 nm long pass filter is replaced with a 605 nm band pass filter to distinguish Cy5 from 532 nm excitable dy...
... DNA Kit is designed for fast and ... plant cells and tissues. The bead beating ... DNA isolation procedures such as CTAB, phenol, ... alcohol precipitation is not necessary - purified ...
The filter 530DF28 for the Molecular Imager FX is a band pass filter for ECL Plus, AttoPhos, SYBR Green, Alexa Fluor 488, FITC, Cy2, and Pro-Q Emerald dyes....
... is a single-step staining method for labeling ... flow cytometry. The kit contains all the ... cells including: positive and negative control cells ... rinsing buffers for processing individual steps in ...
Biology Products: