Gene Definition and DNA Location — NEET Biology
📚 Practice ConceptA gene is defined as the functional unit of inheritance. Though there is no ambiguity that the genes are located on the DNA, it is difficult to literally
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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