What is required for formation of the transcription initiation complex in eukaryotes?
A. binding of RNA polymerase II to the TATA box, followed by recruitment of transcription factors
B. binding of a transcription factor to the TATA box, followed by recruitment of additional transcription factors and recruitment of RNA polymerase II
C. binding of the sigma subunit to promoter elements at -35 and -10, followed by recruitment of the core polymerase
D. binding of the sigma subunit to the start site followed by recruitment of RNA polymerase II
E. binding of a transcription factor to the transcription bubble, followed by recruitment of additional transcription factors and recruitment of RNA polymerase III
Answer: B
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