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AP Biology: Gene Expression Flashcards

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7954630050Operona group of related genes found in a prokaryote that are controlled by one regulator0
7954630051Operatorlocation in DNA where the repressor protein attaches1
7954630052Repressorthe regulatory protein that turns the operon off by bing to the operator2
7954630053OnA lac operon that is producing lactase3
7954630054Tryptophan operonsequence of genes that controls the production of tryptophan4
7954630055Regulatory Genecodes for a repressor protein5
7954630056Repressor ProteinBinds to the operator to inhibit transcription6
7954630057Inducibleoperon that can be turned ON default is turned OFF ex: lac operon7
7954630058Repressibleoperon that can be turned OFF default is turned ON ex: trp operon8
7954630059Inducermolecule that attaches to the repressor protein, changes its shape and removes it from the operator9
7954630060Gene Expressionturning on and off of genes10
7954630061Promoterlocation in DNA where RNA polymerase attaches11
7954630062lactosesugar metabolized by cells12
7954630063lactaseenzyme that metabolizes a particular sugar13
7954630064RNA Polymeraseenzyme that adds nucleotides during the transcription of mRNA14
7954630065lac operonsequence of genes that control the production of lactase15
7954630068Structural Genesgenes found sequentially in an operon that share a common function16
7954630069EukaryotesDo NOT contain operons17
7954630070TranscriptionDNA --> mRNA18
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