Answer:
A mutation is any change in DNA.
Step-by-step explanation:
There are plenty of mutations on the world. Some of them are useful.
For example, freckles and red hair are because of a mutation in the MC1R gene.
I hope I didn't hurt your feelings:)
It's a pleasant one. As long as you don't have them all over your face. Or red hair like Anne from Anne from the Green Gables.
If you sleep for only 4 hours, it's also an example of a mutation (sorry I don't know the gene)
6 fingers/toes is an example of a mutation.
I have 5+5fingers and 5+5 toes. And you?
Albinos also have a mutation.
How to protect yourself from mutations?
Well, avoid UV rays and radiation...
Hope it helps you! I LOVE sharing knowledge!