16. Which one is incorrect?
(A)In eukaryotic genomes, cis-acting control elements that regulate transcription from a promoter often are located many kilobases away from the start site. In contrast, bacterial control elements generally lie within 60 base pairs of the promoters they regulate.
(B)RNA polymerase I synthesizes only pre-rRNA. RNA polymerase II synthesizes mRNAs and some of the small nuclear RNAs that participate in mRNA splicing. RNA polymerase III synthesizes tRNAs, 5S rRNA, and several relatively short, stable RNAs.
(C)RNA polymerase II usually initiates transcription of genes at a specific base pair or alternative neighboring base pairs in a DNA template. The 3' nucleotide that is capped in an mRNA corresponds to the nucleotide in the template strand at which transcription is initiated.
(D)Transcriptional control is the primary means of regulating gene expression in eukaryotes, as it is in bacteria.