Final answer:
Pharmacogenomics is a field of study that tailors drug treatments to an individual's genetic makeup, allowing doctors to prescribe medications that are most effective and have minimal side effects.
Step-by-step explanation:
Pharmacogenomics is a field of study that focuses on how genetic variation affects an individual's response to medications. It involves tailoring drug treatments to an individual's genetic makeup, also known as personalized medicine. By taking a person's genetic information into consideration, doctors can prescribe medications that are most effective and have minimal side effects.