Gene Expression and Gene Regulation Quick Check

Question

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Question
What is one difference between gene regulation in prokaryotes and eukaryotes?(1 point)
Responses

Prokaryotes do not store their genes in a nucleus like eukaryotes do.
Prokaryotes do not store their genes in a nucleus like eukaryotes do.

All eukaryotes use operons to organize their genes while prokaryotes do not.
All eukaryotes use operons to organize their genes while prokaryotes do not.

Eukaryotes transcribe genes in response to environmental stimuli while prokaryotes transcribe genes randomly.
Eukaryotes transcribe genes in response to environmental stimuli while prokaryotes transcribe genes randomly.

Prokaryotes remove exons from mRNA before translation while eukaryotes translate the entire sequence of mRNA.
Prokaryotes remove exons from mRNA before translation while eukaryotes translate the entire sequence of mRNA.
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Answer 1

The correct response to the question about the difference between gene regulation in prokaryotes and eukaryotes is:

Prokaryotes do not store their genes in a nucleus like eukaryotes do.

This statement accurately describes one fundamental difference between prokaryotic and eukaryotic cells, specifically in terms of cellular organization and where genetic material is housed. Prokaryotes have their genetic material freely floating in the cytoplasm, whereas eukaryotes have their DNA contained within a membrane-bound nucleus.

The other statements are either incorrect or misleading. For example:

• Not all eukaryotes use operons; this is a common feature of prokaryotes (such as in operons like the lac operon).
• Both prokaryotes and eukaryotes can regulate gene expression in response to environmental stimuli.
• Prokaryotes do not have introns and exons like eukaryotes do; they typically do not splice mRNA, whereas eukaryotes do remove introns during the RNA splicing process before translation.

Thus, the first statement is the most accurate regarding gene regulation differences.