Elourdyeid Elourdyeid Biology Answered Which of the following statements about the development of disease treatments is true? (A) A person's genetic makeup allows scientists to ignore replication in disease treatment. (B) Replication is necessary to develop medications and monitor their effects on the body. (C) To determine how treatments will act on a disease, scientists use repetition but not replication. (D) Development of vaccines against pathogenic organisms does not require repetition of the investigation.