Control of gene expression in eukaryotic cells occurs at which level(s)?Group of answer choicesTranscription, posttranscription and translation onlyTranscription and translation onlyTranscription, posttranscription, translation and posttranslation onlyTranscription only
Question
Control of gene expression in eukaryotic cells occurs at which level(s)?Group of answer choicesTranscription, posttranscription and translation onlyTranscription and translation onlyTranscription, posttranscription, translation and posttranslation onlyTranscription only
Solution
Control of gene expression in eukaryotic cells occurs at all levels: Transcription, posttranscription, translation and posttranslation. Therefore, the correct answer is "Transcription, posttranscription, translation and posttranslation only".
Here's a brief explanation of each level:
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Transcription: This is the first step in gene expression where the DNA sequence is copied into RNA.
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Posttranscription: After transcription, the RNA molecule undergoes several modifications such as splicing, capping, and tailing.
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Translation: The RNA molecule is then translated into a protein.
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Posttranslation: After translation, the protein undergoes several modifications before it becomes fully functional.
So, gene expression is controlled at all these stages in eukaryotic cells.
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