please don’t try to explain something you don’t understand.
There are no choice made, YoursTrue. Choice implied conscious intent and decision making. Animals, plants & microorganisms don’t choose, it is the genes that determine what traits are inherited, not by any intent of any organisms.
Sure a man and woman can choose to have children, and you can predict what traits that each offspring may or may inherit from one or another, but on the gene & DNA levels, what are inherited or not, occurred without intent of conscious being.
There may be some traits in the gene that remain dormant for tens of generations, and that traits might manifest themselves when the gene activated, when an offspring has been born.
That’s just genetics as the result of sexual reproduction, where the gene pool from either of the families (ancestors of paternal & maternal sides) are already there. So there are no mutations involved.
Mutations, on the other hand, is where the genes mutated, and those mutated genes may or may not be added to the gene pool. Not all mutations are added to the gene pools. And if they don’t get added to the gene pool, then it is very unlikely any descendants will inherited that mutations.
What it means by mutated, it means there are alterations to the sequences of the DNA. These changes are abnormal.
Mutations are something new, that occurred…it may present themselves as physical trait that can be observed, or it may occur internally, so not externally noticeable. Some mutations are helpful (eg immunity to disease), while others malignant (eg cause disease), but most are neutral.
Organisms have no conscious control over whether mutations occur or not.