Question

question 7
lactose binds to the operator to repress the system from transcribing the genes
true
false
question 8
when a gene is \turned on\ it is said to be repressed and \turned off\ is when it is induced
true
false
question 9
rna polymerase will be blocked from transcription if there is no lactose as the operator will be repressed
true
false

Explanation:

• Question 7: Lactose binds to the repressor (not operator) to inactivate it, allowing transcription.
• Question 8: "Turned on" = induced; "turned off" = repressed (the statement reverses these terms).
• Question 9: Without lactose, the repressor binds the operator, blocking RNA polymerase from transcribing lactose-metabolizing genes.

Answer:

Question 7: False
Question 8: False
Question 9: True