Suppose that RNA polymerase was transcribing a eukaryotic gene with several intr

Question

Suppose that RNA polymerase was transcribing a eukaryotic gene with several introns. In what order would the RNA polymerase encounter the following elements in the DNA sequence of the gene? Earliest encountered TATA box element 5' UTR splice acceptor site translation initiation codon stop codon 3' UTR Latest encountered Incorrect. At least one element is misplaced. Introns are interspersed within the coding region of the gene. Therefore, the elements that direct the excision of introns should appear downstream of the start codon.

Explanation / Answer

Tata box element : helps associated tata binding protein and rna polymerase to bind

5' UTR: necessary for binding of ribosome so translation can start

Translation initiation codon : translation starts here

Splice acceptor site : spliciosome complex bind here and remove intron from protein coding gene

Stop codon : translation ends here

3 UTR: gives stability to the mrna as it contains poly A sequence and helps mrna to export .

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