Quantcast

Latest Fragile sites Stories

a24f47e4155cf5c4fb874a33f7f830c21
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
attercop
  • A spider.
  • Figuratively, a peevish, testy, ill-natured person.
'Attercop' comes from the Old English 'atorcoppe,' where 'atter' means 'poison, venom' and‎ 'cop' means 'spider.' 'Coppa' is a derivative of 'cop,' top, summit, round head, or 'copp,' cup, vessel, which refers to 'the supposed venomous properties of spiders,' says the OED. 'Copp' is still found in the word 'cobweb.'
Related