ARPA has various meanings in the Scientific & Educational category. Discover the full forms, definitions, and usage contexts of ARPA in Scientific & Educational.
A repressor is a DNA- or RNA-binding protein that inhibits the expression of one or more genes by binding to the operator or associated silencers. A DNA-binding repressor blocks the attachment of RNA polymerase to the promoter, thus preventing transcription of the genes into messenger RNA.
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