Probably, B. DNA ➡RNA ➡Protein ➡Trait
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Answer:
Conformation change
Explanation:
Repressor protein in the absence of lactose binds to the operator region of the lac operon and does not allow the RNA polymerase to bind to the promoter and start the transcription of lac gene.
In the presence of lactose or allolactose, the repressor protein is not able to bind to the operator region because lactose binds to the active site of repressor protein which results in a conformation change in the repressor protein.
So as the shape of the repressor protein gets changed it do not able to bind to the operon operator and the operon is expressed.
Stars are formed in clouds of dust and gas (nebulae.) Nuclear reactions at the center (core) of stars gives enough energy to make them shine brightly for many, many years. The exact l<span>ifetime of a star depends on its size.</span>
<h2>Coastal lwetlands include a mixture of salt waler and fresh water This answer has been confirmed as correct and helpful. </h2>
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Answer:
In the human body, amylase is predominantly produced by the salivary glands and the pancreas.
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