The fact that in bacterial genomes it is difficult to generate inversions of segments with highly-transcribed genes suggests that
a. bacterial cells actively inhibit chromosomal rearrangements.
b. the consequences of DNA polymerase encountering RNA polymerase moving the opposite direction may be lethal.
c. DNA replication and transcription cannot occur simultaneously.
d. bacterial genes are generally transcribed in the opposite direction of replication.
e. inversion somehow affects transcription rates.
Ans: b
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