Explain what transcription factors and regulatory proteins are and how they regulate gene expression in eukaryotes.
Transcription is the process of synthesising an mRNA molecule by RNA polymerase on the basis of a gene sequence in DNA. A gene is comprised of a promoter section, coding sequence and terminator region.
Answer and Explanation: 1
Transcription factors are proteins which regulate gene expression. They are a type of regulatory protein. Their function is recruiting or hindering the binding of RNA polymerase to the promoter section. Other regulatory proteins can work with transcription factors to either promote or inhibit the gene being expressed. All these proteins bind at response elements.
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fromChapter 18 / Lesson 5
What are transcription factors? This lesson will define transcription factors, discuss their functions, and their unique classes.