Before you make comments like this, you might try learning about some basic genetics, and you might also read up on what Mendel discovered in his experiments.

Here is a site explaining what mutations are, and it also mentions Mendel's discoveries. Actually it's got a lot of good, accessible information about genetics and evolution.

The definition you will see of a mutation, repeated thousands of times over is,

A mutation is a permanent change in the DNA sequence of a gene.

It is not responsible for traits expressed in offspring due to dominant or recessive alleles, as this involves combinations of genes rather than changes to the genes themselves.

If you find any other definition of mutation, please post it here.