Ques. In an Escherichia coli cell according to oparin theory, an operator gene combines with
A. Inducer gene to ‘switch on’ structural gene transcription
B. Inducer gene to ‘switch off’ structural gene transcription
C. Regulator protein to ‘switch off’ structural gene transcription
D. Regulator protein to ‘switch on’ structural gene transcription
Answer:C
Ques. In an Escherichia coli cell according to oparin theory, an operator gene combines with
A. Inducer gene to ‘switch on’ structural gene transcription B. Inducer gene to ‘switch off’ structural gene transcription C. Regulator protein to ‘switch off’ structural gene transcription D. Regulator protein to ‘switch on’ structural gene transcription