Answer:
A Mutation is when a DNA gene is damaged or changed in a way that changes the genetic message carried by that gene.
Explanation:Mutations are sometimes good and sometimes bad it can also cause genetic variation which increases the survival of a species
If a car's acceleration is negative, I'd say the car is slowing down.
Synchroniser switch is in the "on" position.
He thought that they were moons
but it was actually the rings of the planet
