I believe there is some connection between gene expression and resistance training. Depending on your genetics, you may need more rest between sessions for recovery. Sometimes you might need more of a certain training modality because of how your body responds to exercise, and genetics could be one of many factors that come in to play. We all come in different shapes and sizes and because of that each resistance training program should be slightly unique. That being said there are certain methods that everyone should utilize for the greatest benefit. For example everyone should start small with more functional movements before easing in to intense or isolated exercises.