Which of the following statements about eukaryotic gene expression is true?

Gene expression in eukaryotes is a highly complex and regulated process that involves multiple levels of control. The correct statement highlights that various factors can influence gene expression. These factors include not only transcription factors (which can either activate or repress transcription), but also chromatin structure, epigenetic modifications, and RNA processing mechanisms.

For instance, the interaction of transcription factors with enhancers and silencers plays a significant role in determining whether a gene is expressed and to what extent. Additionally, the presence of various signaling pathways can modulate gene expression in response to environmental stimuli, further emphasizing the multi-faceted regulation of gene expression in eukaryotic cells.

This comprehensive regulation allows cells to respond dynamically to internal and external changes, ensuring appropriate gene expression patterns for normal function and development.