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Biology, Medicine/Medical. a procedure for studying the activity of a specific gene, as in testing for a hereditary defect: RNA fragments in an extract of a cell population or a tissue are separated by gel electrophoresis, transferred to a filter, and then hybridized with labeled DNA or RNA derived from a laboratory-engineered copy of the gene in order to identify the size and abundance of the RNA expressed by that gene.


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  • Northern blot analysis

    Northern blot analysis North·ern blot analysis (nôr’ðərn) n. An electrophoretic procedure used to separate and identify RNA fragments.

  • Northern-bobwhite

    noun 1. See under . [bob-hwahyt, -wahyt] /ˈbɒbˈʰwaɪt, -ˈwaɪt/ noun 1. any of several American quail of the genus Colinus, especially C. virginianus (northern bobwhite) having mottled reddish-brown, black, and white plumage. /ˈbɒbˌwaɪt/ noun 1. a brown North American quail, Colinus virginianus, the male of which has white markings on the head: a popular game […]

  • Northern-cameroons

    noun 1. See under (def 2). [kam-uh-roonz] /ˌkæm əˈrunz/ noun, (used with a singular verb) 1. German Kamerun. a region in W Africa: a German protectorate 1884–1919; divided in 1919 into British and French mandates. 2. Also called British Cameroons. the NW part of this region: a British mandate 1919–46 and trusteeship 1946–61; by a […]

  • Northern-canoe

    noun, Canadian. 1. a large, heavy canoe used to transport supplies.

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