"which of the following is false" regarding regulation of gene expression in bacteria?
a) there can be transcriptional regulation for the initiation and the amount of transcription, as well as posttranscriptional regulatory mechanisms.
b) regulated transcription is necessary; constitutive transcription, continuously transcribing genes with no regulatory control, does not occur without mutation.
c) negative control of transcription involves the binding of a repressor protein to a regulatory dna sequence, with the consequence of preventing transcription.
d) positive control of transcription involves the binding of an activator protein to a regulatory dna sequence, with the result of initiating transcription.
e) repressor proteins commonly contain dna-binding and allosteric domains.