Archive: 29/11/2007

Hotspots found for chromosome gene swapping

Crossovers and double-strand DNA breaks do not occur randomly on yeast chromosomes during meiosis, but are greatly influenced by the proximity of the chromosome’s telomere, according to research in the laboratory of Whitehead ...

dateNov 29, 2007 in Medical research
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Blood stem cells fight invaders, study finds

No other stem cell is more thoroughly understood than the blood, or hematopoietic, stem cell. These occasional and rare cells, scattered sparingly throughout the marrow and capable of replenishing an entire blood system, ...

dateNov 29, 2007 in Medical research
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Flies' evasive move traced to sensory neurons

When fruit fly larvae are poked or prodded, they fold themselves up and corkscrew their bodies around, a behavior that appears to be the young insects’ equivalent of a “judo move,” say researchers reporting online on ...

dateNov 29, 2007 in
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Homeless cells find temporary lodging -- and their demise

Sometimes healthy cells commit suicide. In the 1970s, scientists showed that a type of programmed cell death called apoptosis plays a key role in development, and the 2002 Nobel Prize in Physiology or Medicine recognized ...

dateNov 29, 2007 in
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