Genes vs environment
In this new study, they found mutations for RA in twins. "The advantage of studying twins is that they start out with the same genetic information, so differences in the way the genes act can be attributed to differences in the person’s surroundings. Those differences could cause a random genetic mutation, or affect how DNA is packaged."
No one has the same genes even for twins. Once they were separated after the same cell stage, they go different path…even they share more similarity than others, the mutations or modifications of genes happens every moment, which affect their body, look, temper, character et al. Genes or environment, which is more important? It’s hard to say, but they could change or affect each other in either way… It’s not impossible in the near future to change your personality as you wished or your enemy wished, the war between "good and evil" will never end too, with the new possible weapons…
