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Pearson Ch. 18 - Regulation of Gene Expression

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Subject: 
Biology
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Gene expression
Regulation of gene expression
Operon
Tryptophan repressor
Regulator gene
Transcription factor
Trp operon
Promoter
Oncogene
Tumor suppressor gene
Operator
Non-coding RNA

Ch 18 - Regulation of Gene Expression Overview: Conducting the Genetic Orchestra Prokaryotes and eukaryotes alter gene expression in response to their changing environment In multicellular eukaryotes, gene expression regulates development and is responsible for differences in cell types RNA molecules play many roles in regulating gene expression in eukaryotes Concept 18.1: Bacteria often respond to environmental change by regulating transcription metabolic control occurs on two levels cells can adjust the activity of enzymes already present feedback inhibition - presence of enzyme a shuts down synthesis of more enzyme a by inhibiting activity cells can regulate the expression of the genes encoding the enzymes Operons: The Basic Concept

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