AIIMS 2019 Botany Gene Expression MCQ Question
Choose the correct statement.
Transcription and translation occur in same compartment for prokaryotes
Monocistronic RNA⁻more than one structural genes under single promoter
Introns and exons both code for protein synthesis
In prokaryotes, splicing and tailing occurs before translation.
Correct Answer
Detailed Explanation
Transcription and translation occur in the same compartment for prokaryotes because both processes take place in the cytoplasm, allowing for immediate translation of mRNA into proteins without the need for nuclear transport. Option B is incorrect because monocistronic RNA refers to mRNA that encodes a single protein, while polycistronic RNA can encode multiple structural genes under one promoter. Option C is misleading as introns are non-coding sequences that are removed during RNA splicing, while exons are the coding regions that remain and are translated into proteins. Option D is incorrect because prokaryotes do not undergo splicing and tailing; these processes are characteristic of eukaryotic mRNA processing.
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