genetic variation
Technical term in genetics and biology. Refers to differences in DNA sequences among individuals or populations.
Genetic variation is one of the driving forces of evolution.
In this study, we examined genetic variation within the population.
突然変異 means 'mutation', a specific change in DNA sequence, while 遺伝的変異 refers to the broader concept of genetic differences within a population.
Compound of 遺伝的 (genetic) + 変異 (variation). The term is a direct translation of the English 'genetic variation' used in biology.