News tagged with chromosome pairing
The curious chromosomes of a curious fruit
Mar 09, 2009 |
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Incipient sex chromosomes have been found in New Zealand's eponymous export, the kiwifruit. Researchers writing in the open access journal BMC Genomics have mapped the kiwifruit genome and pin-pointed the sex-determining locus. ...
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How chromosomes meet in the dark -- Switch that turns on X chromosome matchmaking
Biology /
Dec 27, 2008 |
5 / 5 (4) |
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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 ...
Chromosomes dance and pair up on the nuclear membrane (w/ Video)
Nov 13, 2009 |
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(PhysOrg.com) -- Meiosis - the pairing and recombination of chromosomes, followed by segregation of half to each egg or sperm cell - is a major crossroads in all organisms reproducing sexually. Yet, how the ...
'Achilles' heel' in Y chromosome linked to sex disorders
Sep 03, 2009 |
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The unique mechanism behind the evolutionary survival of the human Y chromosome may also be responsible for a range of sex disorders, from failed sperm production to sex reversal to Turner Syndrome.
Scientists demonstrate role of protein in distinguishing chromosome ends from DNA breaks
Sep 17, 2009 |
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The Stowers Institute's Baumann Lab has demonstrated how human cells protect chromosome ends from misguided repairs that can lead to cancer. The work, published in The EMBO Journal, a publication of the European Molecular Biolog ...
Researchers identify first sex chromosome gene involved in meiosis and male infertility
Mar 14, 2008 |
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A team of scientists led by University of Pennsylvania veterinary researchers have identified a gene, TEX11, located on the X chromosome, which when disrupted in mice renders the males sterile and reduces female fecundity. ...
Landmark study sheds new light on human chromosomal birth defects
Sep 16, 2009 |
4.8 / 5 (4) |
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Using yeast genetics and a novel scheme to selectively remove a single protein from the cell division process called meiosis, a cell biologist at The Florida State University found that when a key molecular ...
Male sex chromosome losing genes by rapid evolution, study reveals
Jul 17, 2009 |
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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 ...
New Clues to How Sex Evolves
Biology /
Dec 04, 2006 |
3.8 / 5 (6) |
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Sex is a boon to evolution; it allows genetic material from parents to recombine, giving rise to a unique new genome. But how did sex itself evolve? Researchers at the Department of Energy's Lawrence Berkeley ...
Sex Talk Revelations of the Lonely Y Chromosome
Sep 09, 2009 |
4.3 / 5 (3) |
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(PhysOrg.com) -- In the week that the University of Leicester celebrates the 25th anniversary of the discovery of DNA fingerprinting (Thursday September 10) new findings from the world-renowned University of Leicester Department ...
New insights, and a new angle, on high-temperature superconductivity
Jun 29, 2009 |
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(PhysOrg.com) -- A Princeton-led research team has revealed surprising information about how electron behavior influences the conduction of electricity in a class of high-temperature superconductors. An increased ...
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