Final answer:
True, prokaryotic promoters contain the sequence TATAAT at the -10 region from the transcription start site, and it is referred to as the prokaryotic TATA box.
Step-by-step explanation:
Prokaryotic promoters do contain the consensus sequence TATAAT at the -10 region upstream of the transcription start site. This sequence is vital for transcription initiation as it is recognized by the RNA polymerase's sigma factor, which facilitates the binding of the core RNA polymerase enzyme to the DNA. This A-T-rich sequence aids in the unwinding of the DNA helix to allow transcription to begin. The -35 sequence, with the consensus TTGACA, is another crucial element of prokaryotic promoters for sigma factor binding.
Both prokaryotic and eukaryotic promoters contain a TATA box, although eukaryotic promoters have a TATA box sequence TATAAA that differs slightly from the prokaryotic TATA box sequence. This box is crucial for the initiation of transcription in both types of organisms, as it denotes the area where transcription factors bind, allowing for the subsequent recruitment of RNA polymerase, and thus, the initiation of transcription.