They have been separate ever since, and have become genetically distinct from one another.
Genetically distinct populations have been found on opposite sides of the river.
There are two genetically distinct population groups, but no recognised varieties.
It is genetically distinct from other species of cave crayfish.
September 23 - Researchers find that there are four genetically distinct types of breast cancer.
Their ranges overlap, but they have been shown to be genetically distinct.
The disorders are believed to be genetically distinct from each other.
Ridley discusses the history of human kind as a genetically distinct species.
Each population is genetically distinct, with their own set of nesting and feeding grounds within the population's known range.
The researchers used four genetically distinct breast cancer cell lines.