The so called original gene was their main gene when they were first born. When everyone was born, they would be checked for their potential based on some specific genes in their body.
It was the specific genes that could allow them to determine their physical and mental strength's potential.
The physical strength was hard to say because it can be easily trained along with the necessary medication, diet, and so on. But this test would be able to let them know the starting point of these babies.
The mental strength referred to their initial mental strength, which normally only have 1. Those who could have above would usually have some special talent in specific field and can be monitored and guided.
Everyone's talent was different, so the nation never forced them to a specific path.
They can freely develop their talent.
