mRNA Synthesis from Coding Strand — NEET Biology
📚 Practice ConceptIf the sequence of the coding strand in a transcription unit is written as follows: 5'-ATGCATGCATGCATGCATGCATGC-3' Write down the sequence of mRNA.
Which of the following statements regarding a transcription unit in DNA are NOT correct? S1: The promoter region is located towards the 5'-end (upstream) of the structural gene with respect to the polarity of the coding strand. S2: The template strand serves as the direct coding sequence for the polypeptide, with its sequence being identical to the mRNA. S3: In prokaryotes, a single transcription unit can often be polycistronic, encoding multiple structural genes. S4: The terminator sequence is located towards the 5'-end (upstream) of the coding strand and defines the end of transcription. S5: Regulatory sequences, such as enhancers, are considered primary defining components of a transcription unit along with the promoter, structural gene, and terminator.
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