A geneticist is a biologist or physician who studies genetics, the science of genes, heredity, and variation of organisms.
[1] Some geneticists perform experiments in model organisms such as Drosophila, C. elegans, zebrafish, rodents or humans and analyze data to interpret the inheritance of biological traits.
A basic science geneticist is a scientist who usually has earned a PhD in genetics and undertakes research and/or lectures in the field.
A medical geneticist is a physician who has been trained in medical genetics as a specialization and evaluates, diagnoses, and manages patients with hereditary conditions or congenital malformations; and provides genetic risk calculations and mutation analysis.
There are many careers for geneticists in medicine, agriculture, wildlife, general sciences, or many other fields.