A new technique, based on a chain reaction of recognition and hybridization events between two sets of DNA hairpin molecules, offers an enzyme-free alternative for the rapid detection of specific DNA ...
Travelers are stuck in a traffic jam as people hit the road before the busy Thanksgiving Day weekend in Chicago, Illinois, U.S., November 21, 2017. REUTERS/Kamil Krzaczynski/File Photo U.S. President ...
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