You are studying the effects of specific transcription factors on the activation of gene expression. You notice that one particular transcription factor binds far away from the promoter of its target gene. What can explain this?
A. DNA looping brings the transcription factor closer to the promoter and initiates gene transcription.
B. RNA looping brings the transcription factor closer to the promoter and initiates gene transcription.
C. The transcription factor tags the enhancer with ubiquitin to stimulate transcription.
D. The transcription factor transcribes small RNAs that then bind to the promoter and activate the gene's expression.
Answer: A
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