it is Adaptations i think
"The mutant will not be able to grow on lactose" is the one thing among the following choices given in the question that will be observed if mutation occurs in the gene for the lac repressor and results in a repressor thatdoes not bind lactose. The correct option among all the options that are given in the question is the first option.
Answer:
Limiting human use of nitrogen that is in the atmosphere.
Explanation: