Translation of "Mutation" in Japanese

Our brains underwent a major genetic mutation,

人間の脳に大きな遺伝的変異が起こり

An aging disease involving a mutation in the LMNA gene,

早期老化の病気で LMNA遺伝子の突然変異により

Without the random mutation of genes there would be no evolution.

遺伝子の突然変異がなければ、進化は起こりえない。