The answer is A. Differentiation
Answer:
Cellular respiration
Explanation:
Respiration is the process by which energy is made. Aerobic respiration requires oxygen.
All the other processes listed do not require oxygen to.
Answer:
When helicase mutations occur, problems in DNA replication are found. The helicases are proteins that open the 2 strands of DNA to initiate the duplication, they are responsible for breaking the hydrogen bonds between the two DNA chains, thus separating the chains, also they have the function of repairing DNA mutations, if there is mutation in the gene that encodes them, various functions will be absent in the cell.