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12-5 Gene Regulation
Eukaryotic Gene Regulation
Genes are regulated in a variety of ways by enhancer
sequences.
Many proteins can bind to different enhancer
sequences.
Some DNA-binding proteins enhance transcription
by:
• opening up tightly packed chromatin
• helping to attract RNA polymerase
• blocking access to genes.
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40 of 26
Copyright Pearson Prentice Hall
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