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8 terms

Ch 7. Control of gene expression (vocab)

Ch 7. Control of gene expression.
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gene regulatory protein
Any protein that binds to a specific DNA sequence to alter expression of a gene.
helix-turn-helix
A structural motif common to many DNA binding proteins
operon
A group of consecutive prokaryotic genes transcribed from a single promoter
operator
DNA sequence to which RNA polymerase binds to begin transcription
X-inactivation
Gene silencing on one of the two X-chromosomes in somatic cells of female mammals
DNA methylation
Addition of a -CH3 group to cytosines in CG sequences of vertebrates
Alternative RNA splicing
Different proteins produced from the same gene by combination of different exons
RNAi
Defense mechanism directed against double stranded foreign RNA molecules