What type of feature is shown in this image? 
Definitions:
Transcription Rate
The transcription rate refers to the speed at which genetic information is copied from DNA to RNA, affecting gene expression levels.
Enhancer
A short region of DNA that can be bound with proteins (transcription factors) to increase the likelihood that transcription of a particular gene will occur.
Lac Operon
A gene system found in E. coli and other bacteria that regulates the metabolism of lactose, demonstrating gene regulation principles.
Operon's Genes
A group of genes in prokaryotes that function together, controlled by a single regulatory signal or promoter.
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