> Top bodybuilders generally mean with "good genetics" that your body's response to steroids is good. 1. There are both tested and untested competitions. 2. B

> Top bodybuilders generally mean with "good genetics" that your body's response to steroids is good. 1. There are both tested and untested competitions. 2. Because bodybuilding is an aesthetic discipline, part of "good genetics" is not just the ability to grow lots of muscle, but where the muscle attaches to the bone.