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reading frame
(redirected from open reading frame (ORF))

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
reading frame
the actual codons that are translated (read) during mRNA synthesis. In principle a DNA sequence can be transcribed in any one of three different reading frames, each of which will specify a completely different polypeptide. Usually only one of the three reading frames is transcribed.

open reading frame (ORF)
an extended sequence in mRNA that is free of stop codons.


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