What is the purpose of transcription factors in eukaryotic cells?
A. They help RNA polymerase bind to the DNA strand. B. They make it possible for transcription to terminate in eukaryotes. C. They add mRNA nucleotides to the growing strand during elongation. D. Transcription factors are only used in prokaryotic cells.
Transcription factors in eukaryotic cells are crucial for initiating transcription by recruiting RNA polymerase to the site where transcription occurs.
Explanation:
Transcription factors in eukaryotic cells are essential proteins that bind to the promoter sequence and other regulatory sequences to control the transcription of genes. They are required to initiate transcription by recruiting RNA polymerase to the site where transcription occurs. RNA polymerase by itself cannot initiate transcription in eukaryotic cells; transcription factors play a crucial role in this process.
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