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Which of the following is the best definition of the initiation delay that is seen in all organisms?
A. Initiation delay is explained as the time it takes for the pre-initiation complex to form at the core promoter of a gene that requires to be transcribed.
B. Initiation delay is the time that it takes for RNA Pol II to clear (or escape) the promoter.
C. Initiation delay is explained by the duration of time that RNA Pol II pauses (or stalls) at the +30 site.
D. The initiation delay refers the time (from the point of pre-initiation complex formation) that it takes for RNA Pol II to synthesize the first full-length mRNA transcript.
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