Enhancers: cis-regulatory elements that increases the rate of transcription; can be activated in most cells and tissues
: allows the formation of enhanceosome → protein complex that activates transcription
Identify the functions of an enhancer in transcription.
a) A cis-acting regulatory sequence of DNA that reduces levels of transcription.
b) A cis-regulatory element that regulates gene transcription in specific tissues or cells.
c) Begins gene expression by disabling repressors and binding to the repressor elements.
d) Inhibits transcription by binding to the operator.
e) Regulates transcription by catalyzing the formation of an enhanceosome, activating transcription.