Final answer:
Genomics can be used on a personal level mainly to predict disease risks and tailor medical treatments according to one's genetic information. It is important in identifying predispositions to both single-gene and multifactorial diseases.
Step-by-step explanation:
Genomics can be utilized on a personal level to predict disease risks and personalize medical treatment. The use of genomic information allows for the screening of currently healthy individuals to determine their predisposition to certain genetic conditions. This is particularly relevant for diseases caused by single gene mutations, although they represent a small fraction of diseases in developed countries.
Most common diseases, such as heart disease, are polygenic and influenced by environmental factors such as diet. Notwithstanding the technical advancements and affordability of genomic sequencing, ethical considerations still pose challenges, especially when it comes to the use of this information in healthcare and insurance.