单词	double helix
释义	double helix From Longman Dictionary of Contemporary EnglishRelated topics: Shapes, patterns, Microbes, genetics, biochemldoce_073_adouble helixˌdouble ˈhelix noun [countable] technical  CFHBMa shape consisting of two parallel spirals that twist around the same centre, found especially in the structure of DNAExamples from the Corpusdouble helix• Each then acts as a template to which other simpler molecules become attached until each has once more become a double helix.• The entwined serpents forming a double helix gave birth to the Caduceus.• Cobras are constantly depicted entwined in a double helix.• If the ends of such non-dividing clone are held while it grows, then unexpectedly a double helix appears.• Thus each double helix becomes two double helices, with the two new doublets remaining joined at the centromere.• In the formation of the double helix, a total of 12 rotors are restricted per base pair stack.• These conformations influence the position of the phosphate group with respect to the grooves of the double helix.
随便看	don’t give me that line don’t go doing something don’t go mad don’t go there don’t hesitate to do something don’t hold your breath don’t judge a book by its cover don’t know/can’t tell etc which is which don’t let’s do something don’t look now don’t make me laugh don’t mention it don’t mind her/him etc don’t mind me don’t remind me don’t sweat it don’t sweat the small stuff don’t take that tone with me don’t tell me don’t trouble yourself don’t waste your breath don’t worry don’t you believe it! don’t you dare! don’t/didn’t/won’t etc bother

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