Old Maddy said, "I don't know why he was chosen, but your mother told us at the time to choose the smartest one. That's because the serum she gave you improved one's genes. Even if it was passed on to the child, their genes wouldn't be modified much if the child was born very smart. This way, if the serum is unable to do what it's supposed to, it will become ineffective. I would think that is likely the reason why."
Nora: "…"
So, Justin had been chosen because of his high IQ?
The corners of Nora's lips spasmed.
But she felt that the answer didn't seem unacceptable either.
After all, Cherry's IQ was slightly higher than Pete's, probably because half of a female's genes were inherited from the father.
"Then, here's my last question."
Nora stared hard at Old Maddy. "If I gave birth to more children, would the amount of serum distributed to each child have become smaller, thereby making it safer for them?"