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Definition of Northern blot

Northern blot: A technique in molecular biology, used mainly to separate and identify pieces of RNA.

Called a Northern blot only because it is similar to a Southern blot (which is named after its inventor, the British biologist M.E. Southern). There is also a Western blot.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=4584
Last Editorial Review: 6/14/2012

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