Environmental Genetic Variation Quick Check 2 of 52 of 5 Items Question Epigenetic changes are generally(1 point) Responses not heritable changes in gene structure of a population. not heritable changes in gene structure of a population. heritable "on/off switches" for gene sequences due to environmental factors. heritable "on/off switches" for gene sequences due to environmental factors. not heritable genetic changes that are specific to an individual. not heritable genetic changes that are specific to an individual. heritable changes in genetic sequences of a population. heritable changes in genetic sequences of a population. Skip to navigation page 12 of 12