(Science: molecular biology) a specific sequence of nucleotides on a site on the genome of the bacteria escherichia coli which strongly encourages recombination and crossing over to occur at that site.
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... that natural selection has optimized the rhodopsin structure to achieve a superfast and superselective photoreaction of the chromophore, but ... as stacking of \111\ faces. The other appears on a \111\-N faces as sequence of \111\ faces, forming an arrow-like mirror symmetric pattern on ...
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