Read the following context and answer the question.
Context: At first , her parents thought it was just a knack she had for finding keys and lost rings . Then the headaches started , and a routine bloodtest showed she was carrying the mutant gene . Her ' knack ' for finding lost keys and rings was actually a mutation .
Question: What may have happened if the mutant gene was not found ?
Answer:


The family would n't know that they have a mutant gene .