Multiple Choice
Which technique cannot be used to analyze gene expression?
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16. Regulation of Expression
Introduction to Regulation of Gene Expression
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Which of the following statements about enhancers is true?
A
Enhancers are proteins that bind to RNA polymerase to initiate transcription.
B
Enhancers are only found in prokaryotic organisms.
C
Enhancers must be located immediately adjacent to the promoter they regulate.
D
Enhancers are DNA sequences that increase the transcription of associated genes.
Verified step by step guidance1
Understand that enhancers are not proteins, but rather DNA sequences. They play a role in increasing the transcription of genes by interacting with transcription factors and other proteins.
Recognize that enhancers are not exclusive to prokaryotic organisms. In fact, they are primarily found in eukaryotic organisms, where they help regulate gene expression.
Note that enhancers do not need to be located immediately adjacent to the promoter they regulate. They can be located thousands of base pairs away, either upstream or downstream of the gene they influence.
Enhancers function by binding specific proteins called transcription factors. These factors help to recruit RNA polymerase to the promoter region, thereby enhancing the transcription of the gene.
The correct statement about enhancers is that they are DNA sequences that increase the transcription of associated genes by facilitating the assembly of the transcriptional machinery at the promoter.
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