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Latest Fragile sites Stories

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2009-07-10 09:45:00

Telomeres, the repetitive sequences of DNA at the ends of linear chromosomes, have an important function: They protect vulnerable chromosome ends from molecular attack. Researchers at Rockefeller University now show that telomeres have their own weakness. They resemble unstable parts of the genome called fragile sites where DNA replication can stall and go awry. But what keeps our fragile telomeres from falling apart is a protein that ensures the smooth progression of DNA replication to the...

2005-06-08 23:01:00

According to the World Health Organisation, the definition of autism is based on a specific pattern of behaviour characteristics, as neither its aetiology nor pathology is defined. This is why a search for autism markers is proposed at three levels: morphological, cytogenetic and molecular. In the 80s, a research group at the Leioa campus of the University of the Basque Country worked on dermatoglyphs, an analysis technique applied to autistic children. Dermatoglyphs, or handprints and...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.