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Transcription of the structural genes within the lac operon will occur when A - VCE - SSCE Biology - Question 3 - 2019 - Paper 1
Question 3
Transcription of the structural genes within the lac operon will occur when A. a repressor molecule is attached to the operator. B. RNA polymerase is attached to the... show full transcript
Worked Solution & Example Answer:Transcription of the structural genes within the lac operon will occur when A - VCE - SSCE Biology - Question 3 - 2019 - Paper 1
Step 1
RNA polymerase is attached to the promoter.
Answer
Transcription of the structural genes within the lac operon occurs when RNA polymerase binds to the promoter region. This binding is crucial as it initiates the process of transcription, allowing for the production of mRNA from the structural genes in the operon. Without RNA polymerase's attachment, transcription cannot take place, regardless of the presence of other factors.