Which statement about operons is false?
A) The structural genes in the operon are either all on or all off at a given time.
B) They consist of a cluster of genes with a single promoter.
C) Their DNA is transcribed into a single molecule of mRNA.
D) They are the units of transcriptional regulation in prokaryotes.
E) A repressible operon is turned off unless needed.
Correct Answer:
Verified
Q24: Which statement about viruses is true?
A) They
Q25: Suppose that there is a mutation in
Q26: The prokaryotic gene zest5 produces a hypothetical
Q27: Viruses
A) arise from preexisting viruses.
B) replicate their
Q28: In eukaryotic cells,promoters are
A) transcribed.
B) transcribed and
Q30: Which of the following acts as a
Q31: In the absence of substance M,a hypothetical
Q32: What is a likely advantage of transcriptional
Q33: In eukaryotes,a promoter is the region of
A)
Q34: Which statement about the early genes in
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