A. Prokaryotes have RNA as a template for transcription, while eukaryotes have DNA as a template.
B. In prokaryotes, transcription occurs in the nucleus, while in eukaryotes, it occurs in the cytoplasm.
C. Prokaryotic mRNA does not undergo splicing, while eukaryotic mRNA does.
D. Prokaryotic tmRNA undergo splicing, while eukaryotic mRNA does not.
参考答案:
C
本题详细解析:
In prokaryotes, the mRNA produced after transcription is ready for translation and does not undergo splicing. In contrast, eukaryotic pre-mRNA undergoes splicing to remove introns and join exons, producing mature mRNA. Choice C is, therefore, correct.
Both prokaryotes and eukaryotes use DNA as a template for transcription. Choice A is, therefore, incorrect. In prokaryotes, transcription occurs in the cytoplasm, while in eukaryotes, it occurs in the nucleus. Choice B is, therefore, incorrect. Splicing of mRNA occurs in eukaryotes, not prokaryotes. Choice D is, therefore, incorrect
