Transcription of a eukaryotic protein-coding gene, Biology

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1. Describe how the various molecular mechanisms act to regulate transcription of the genes within the lactose operon of E. coli.

2. Transcription of a eukaryotic protein-coding gene is accompanied by multiple steps that modify the transcript. Describe the following processes in detail, indicating their role in gene expression.

a) Addition of the universal cap.

b) Intron splicing.

c) Polyadenylation.


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