Geneticists at work
A geneticist was a biologist or other type of scientist that specialized in an expertise with the field of genetics.
Doctors Adam and Arik Soong were Human geneticists. (ENT: "Borderland"; PIC: "Two of One")
Geneticists on Moab IV were able to screen out any congenital health problems before a child was conceived. (TNG: "The Masterpiece Society")
The Bajoran Dekon Elig was a geneticist. (DS9: "Babel")
Some geneticists were of the opinion that Klingons developed a third lung in order to increase their stamina while fighting. (VOY: "Lineage")