Question

Arrange the following steps in lac operon induction in correct order :
A. Formation of mRNA
B. Binding of lactose to repressor
C. RNA polymerase binds to promoter
D. Transcription of structural genes
E. Removal of repressor from operator
Choose the correct answer from the options given below :

• A. \(D, E, A, B, C\)
• B. \(E, B, D, A, C\)
• C. \(C, A, E, B, D\)
• D. \(B, E, C, D, A\)

Hint:

Remember the sequence of lac operon induction: \[ \text{Inducer binds repressor} \rightarrow \text{Repressor removed} \rightarrow \text{Transcription begins} \]
• Lactose/allolactose \(\rightarrow\) Inducer
• lacZ \(\rightarrow\) \(\beta\)-galactosidase
• lacY \(\rightarrow\) Permease

Answer 1

The Correct Option is D