noun, noun or participle which takes 'suru', intransitive verb
Biological term for a change in genetic material. Can also be used figuratively for a sudden, unexpected change, but the core sense is scientific.
この植物は突然変異で新しい色の花を咲かせるようになった。
This plant came to bloom with a new color of flower due to a mutation.
The virus underwent a mutation and became more infectious.