News tagged with x chromosome
Reproductive scientists create mice from 2 fathers
Using stem cell technology, reproductive scientists in Texas, led by Dr. Richard R. Berhringer at the M.D. Anderson Cancer Center, have produced male and female mice from two fathers.
Dec 08, 2010 |
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Genetic research confirms that non-Africans are part Neanderthal
Some of the human X chromosome originates from Neanderthals and is found exclusively in people outside Africa, according to an international team of researchers led by Damian Labuda of the Department of Pediatrics at the ...
Other Sciences / Archaeology & Fossils
Jul 18, 2011 |
5 / 5 (28) |
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Grandparents favor genetically close grandchildren
(PhysOrg.com) -- New research suggests that grandparents naturally and subconsciously favor the grandchildren who are most closely related to them genetically. The phenomenon is called "sexually antagonistic ...
Apr 29, 2010 |
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Male sex chromosome losing genes by rapid evolution, study reveals
Scientists have long suspected that the sex chromosome that only males carry is deteriorating and could disappear entirely within a few million years, but until now, no one has understood the evolutionary ...
Jul 17, 2009 |
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Adam's rib, revisited: Evolutionary divergence of mammalian sex chromosomes
(Phys.org) -- Males and females... Mars and Venus... XY and XX chromosomes -- all are common memes. At the same time, the evolution of therian (placental and marsupial) sex chromosomes is less widely understood. ...
Apr 18, 2012 |
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The story of X -- evolution of a sex chromosome
(PhysOrg.com) -- Move over, Y chromosome - it's time X got some attention. In the first evolutionary study of the chromosome associated with being female, University of California, Berkeley, biologist Doris ...
Apr 16, 2009 |
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Brain gene makes a female develop as a male
Australian scientists have discovered that changes to a gene involved in brain development can lead to testis formation and male genitalia in an otherwise female embryo.
Dec 22, 2010 |
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Getting down to cancer basics
Researchers have identified a new cancer gene - one that is common to many cancers and affects the most basic regulation of our genes. The new example - a gene on the X chromosome called UTX - is found in 10% of cases of ...
Mar 29, 2009 |
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Researchers discover mechanism that prevents two species from reproducing
Cornell researchers have discovered a genetic mechanism in fruit flies that prevents two closely related species from reproducing, a finding that offers clues to how species evolve.
Oct 26, 2009 |
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Scientists show how men amp up their X chromosome
What makes a man? His clothes? His car? His choice of scotch? The real answer, says Brown University biologist Erica Larschan, is the newly understood activity of a protein complex that, like a genetic power tool, gives enzymes ...
Mar 02, 2011 |
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Researchers uncover Fragile X syndrome gene's role in shaping brain
Researchers at UT Southwestern Medical Center have discovered how the genetic mutation that causes Fragile X syndrome, the most common form of inherited mental retardation, interferes with the "pruning" of nerve connections ...
Medicine & Health / Neuroscience
May 07, 2010 |
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In praise of the Y chromosome
(PhysOrg.com) -- David Page, director of the Whitehead Institute and professor of biology at Massachusetts Institute of Technology, says research indicates the much-maligned Y chromosome plays a more critical ...
Apr 20, 2010 |
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How chromosomes meet in the dark -- Switch that turns on X chromosome matchmaking
A research group lead by scientists at the University of Warwick has discovered the trigger that pulls together X chromosomes in female cells at a crucial stage of embryo development. Their discovery could also provide new ...
Biology /
Dec 27, 2008 |
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Genetic conflict in fish led to evolution of new sex chromosomes
University of Maryland biologists have genetically mapped the sex chromosomes of several species of cichlid (pronounced "sick-lid") fish from Lake Malawi, East Africa, and identified a mechanism by which new ...
Oct 01, 2009 |
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Rett Syndrome scientist makes significant discovery
A paper published online today in Nature Neuroscience reveals the presence of methyl CpG binding protein 2 (MeCP2) in glia. MeCP2 is a protein associated with a variety of neurological disorders, including Rett Syndrome, the mo ...
Medicine & Health / Diseases, Conditions, Syndromes
Feb 23, 2009 |
5 / 5 (4) |
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X chromosome
The X chromosome is one of the two sex-determining chromosomes in many animal species, including mammals (the other is the Y chromosome). It is a part of the XY sex-determination system and X0 sex-determination system. The X chromosome was named for its unique properties by early researchers, and this resulted in its counterpart being named the Y chromosome for the next letter in the alphabet when it was discovered later.
For more information about X chromosome, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
