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Latest Chromosome Stories

Calico Cats Inspire Research Into X Chromosome Inactivation
2014-02-19 04:31:40

April Flowers for redOrbit.com - Your Universe Online Calico cats are renowned and beloved for their funky orange and black patchwork or "tortoiseshell" fur. Cat Breeds Encyclopedia reports that these felines — considered to be good luck in several countries — are 90 percent female, suggesting that the color pattern is related to the gender of the animal. New research from the University of California San Francisco (UCSF), has further linked this unique color pattern to X chromosome...

2014-02-04 11:35:43

New insights into how the cells in our bodies divide could improve our knowledge of a condition linked to cancer, a study suggests. Errors in the cell division process – which allows us to grow and stay healthy – can lead to a genetic disorder called aneuploidy, which is also associated with birth defects and infertility. Researchers at the University of Edinburgh have pinpointed the key role played by a protein in ensuring that cells separate correctly. During cell division,...

Physical Reason For Shape Of Metaphase Chromosome Discovered
2014-01-15 07:37:00

Universitat Autonoma de Barcelona This work gives a solution to a fundamental question in structural biology: Why do metaphase chromosomes have their characteristic elongated cylindrical shape? The proposed solution is consistent with the structure of metaphase chromatin and with the nanomechanical properties of chromatin and chromosomes. It is a research at the interface between biology (higher order chromatin structure) and physical sciences (supramolecular structures and nanomaterials)....

Y Chromosome Not Going To Disappear
2014-01-10 10:40:58

Brett Smith for redOrbit.com - Your Universe Online Finally, some good news for men, as a new study in PLOS Genetics has found that the human race may not be losing the Y chromosome after all. Some popular theories have posited that the male sex chromosome is destined to diminish and disappear. "The Y chromosome has lost 90 percent of the genes it once shared with the X chromosome, and some scientists have speculated that the Y chromosome will disappear in less than 5 million years,"...

2014-01-08 23:02:56

National Institute of Mental Health Director Salutes UVA Discovery Charlottesville, VA (PRWEB) January 08, 2014 For the second year in a row, groundbreaking research from the University of Virginia School of Medicine’s Department of Biochemistry and Molecular Genetics has made the list of the year’s top 10 discoveries and breakthroughs, as compiled by the director of the National Institute of Mental Health. Under the heading “Brain Exceptionalism,” NIMH Director Thomas R. Insel,...

2014-01-03 15:36:17

A review of the computer simulations of nuclear DNA DNA carries out its activities "diluted" in the cell nucleus. In this state it synthesizes proteins and, even though it looks like a messy tangle of thread, in actual fact its structure is governed by precise rules that are important for it to carry out its functions. Biologists have studied DNA by observing it experimentally with a variety of techniques, which have only recently been supplemented by research in silico, that is to say,...

2013-12-11 12:23:42

Researchers at the Cell Cycle Research Group of the Bellvitge Institute of Biomedical Research (IDIBELL) led by Ethel Queralt have reported in the journal PLoS Genetics an article which delve into the regulator mechanisms of mitosis, a key stage of the cell-cycle for the correct transmission of genetic information from parents to sons. Cell-cycle Cells in all organisms grow and divide into two daughter cells by an ordered sequence of events called "cell cycle". Basically, the cells have...

2013-11-25 16:37:53

A new view of our chromosomes reveals a complex picture Chromosomes – the 46 tightly-wrapped packages of genetic material in our cells – are iconically depicted as X-shaped formations. However, those neat X’s only appear when a cell is about to divide and the entire contents of its genome duplicated. Until now researchers have not been able to get a good picture of the way that our DNA – some two meters of strands all told – is neatly bundled into the nucleus while enabling...

2013-11-25 04:20:04

Tokyo, Nov 25, 2013 - (ACN Newswire) - Researchers at Waseda University in Japan have for the first time directly observed the "molecular motor", called Xkid, that plays a critical role in facilitating the proper alignment of chromosomes during cell division. Their findings are expected to contribute greatly to elucidating the molecular mechanisms of chromosome segregation, a key aspect of the development of certain medical disorders including cancer and birth defects.A human being begins as...

2013-11-04 15:24:01

A rudimentary form of life that is found in some of the harshest environments on earth is able to sidestep normal replication processes and reproduce by the back door, researchers at The University of Nottingham have found. The study, published in the journal Nature, centers on Haloferax volcanii — part of a family of single-celled organisms called archaea that until recently were thought to be a type of bacteria. The findings, led by scientists from the University's School of Life...


Word of the Day
mallemaroking
  • Nautical, the visiting and carousing of sailors in the Greenland ships.
This word is apparently from a confusion of two similar Dutch words: 'mallemerok,' a foolish woman, and 'mallemok,' a name for some persons among the crew of a whaling vessel.