Question

Prokaryotes produce proteins faster than eukaryotes. What makes this possible?

• A. Transcription and translation are coupled due to a lack of a nuclear membrane in prokaryotes.
• B. Prokaryotes do not have introns to splice out as eukaryotes do.
• C. Prokaryotes do not add a poly-A tail post-transcription.
• D. All of the above.

Answer 1

Answer: (D)

All of the above.

In prokaryotes, nuclear membrane is absent. Hence, transcription and translation takes place together. In eukaryotes, transcription takes place in nucleus and translation takes place in cytoplasm. Prokaryotes do not have introns to splice out. Eukaryotes contains non function introns which are spliced out from premature RNA to produce mature RNA. Prokaryotes do not add a poly-A tail post-transcription. Eukaryotes shows post-transcriptional modifications like capping, adding poly-A tail at the end, etc. Hence, prokaryotes produce proteins faster than eukaryotes.

Thus, the correct answer is 'All of the above.'