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Transcription factors and transcriptional control in eukaryotic cells |
| Answer» PLE answer to this question is that eukaryotes have developed a more COMPLEX way of controlling expression of their existing genes than prokaryotes. This system of expression CONTROL relies on a group of proteins known astranscription factors (TFs), and it allows eukaryotes to alter their cell types and growth PATTERNS in a variety of ways. TFs are not solely responsible for gene regulation; eukaryotes also rely on cell signaling, RNA SPLICING, siRNA control mechanisms, and chromatin modifications. However, TFs that bind to cis-regulator DNA sequences are responsible for either positively or negatively influencing the transcription of specific genes, essentially determining whether a particular gene will be turned "on" or "off" in anorganism. | |