Which of the following is a fundamental difference between gene regulation in bacteria compared with eukaryotes?
A)In bacteria,but not eukaryotes,there is a specific sequence that specifies where RNA polymerase binds and initiates transcription.
B)In eukaryotes,but not bacteria,transcription can be influenced by how effectively the DNA sequence of a promoter region interacts with histone octamers.
C)Transcription regulation is the most widespread form of control of gene expression in bacteria but not in eukaryotes.
D)Gene regulation is readily reversible in eukaryotes but not bacteria.

Question

Quizplus · Accepted Answer

In eukaryotes, the DNA is packaged around histones, which can affect gene expression by either restricting or facilitating access to the DNA by RNA polymerase. Bacteria do not have histones, and so gene regulation occurs solely through the binding of RNA polymerase to a specific promoter sequence. Choices A, C, and D are either not accurate or not relevant to the comparison of gene regulation between bacteria and eukaryotes.

Which of the Following Is a Fundamental Difference Between Gene