Optical microscope.
Hope this helps.
Answer:
Activated
Explanation:
In the presence of lactose, and in the absence of glucose, lactose will bind to a protein called a "repressor," deactivating it. Through this, RNA polymerase has a free way to synthesize the mRNA that will give enzymes for lactose degradation.
Is this like on a test or like homeowork?
The answer would be : <span>dominant.
Hope this helps !
Photon</span>
