Final answer:
Genetic isolation refers to the separation of populations that restricts gene flow, while reproductive isolation is the inability of individuals from different populations to produce fertile offspring.
Step-by-step explanation:
Genetic isolation and reproductive isolation are both mechanisms that can lead to the formation of new species. Genetic isolation refers to the separation of populations that leads to limited or no gene flow between them. This can occur through geographic barriers or other mechanisms that prevent individuals from mating and exchanging genetic material.
Reproductive isolation, on the other hand, refers to the inability of individuals from different populations to produce fertile offspring when they do come into contact. This can be caused by differences in mating behaviors, physical incompatibilities, or genetic incompatibilities.
In summary, genetic isolation is the separation of populations that restricts gene flow, while reproductive isolation is the inability of individuals from different populations to produce fertile offspring.