No, just whether one has a long gene or a short gene on a particular genetic strand. For example, the impact of trauma on someone who has a "strong" (long) version of the gene would be much less than the same trauma on an individual who has the "weak" (short) version of the gene.
Or someone who experiences trauma "k" and has the weakened version of a gene that cause depression will with 95% likelihood develop depression, whereas someone who experiences trauma "k" but has the stronger version of the same gene may never develop depression (unless they have the weakened version of other depression-causing genes).

Whatever... it is becoming increasingly clear that we are a product of neither nature nor nurture, but an inextricable combination of the way our particular environments and experiences - physical AND psychological - interact with our unique combination of genes.