Molecular Population Genetics and Diversity through Mutation

It seems that Dr A is being a bit unclear to you.It is a known fact that mutations occur and create differences in the DNA sequences from parents to offspring. You, yourself, have a number of them. Every human born does. (well, I suppose it isn't statistically impossible that someone could be born without them it is just very, very, very unlikely).That means there re billions and billions of new mutations every generation. They have been measured. They are a fact. You can make all the unsupported assertions that you want but the facts simply will not go away.I'll help you with your argument: we haven't measured every human so how can we know this is a fact? The answer is that whenever we do measure they are there. The answer is that the nature of replication produces these changes. The answer is there is no reason to think otherwise. When you supply one then it can be considered.

You are wrong. Of course, during growth many mutations occur in somatic cells -- that can lead to cancer for one thing.
But there are mutations in the reproductive cells in all of us.Mutations are known to be predominantly, in fact overwhelmingly neutral. If they weren't we'd be in bad shape. Ok, actually that is for the ones we carry not the ones the terminate pregnancies.It hasn't been determined but since the majority of fertilizations naturally abort it could be that there are many, many that are deleterious enough to cause this. However, just regular developmental errors that have nothing to do with genetics could be the predominant cause of this. I think it is unknown.Mutations in somatic cells have never been a part of the discussion for anyone. They are not interesting from an evolutionary view.We are all only talking about germ line mutations.
ABE:
You passed some number of your mutations on. And some were added in her that you don't have.Edited by NosyNed, : No reason given.

Exactly the opposite. Without these changes going on constantly populations would be unable to change with changing conditions and then instead of almost all of them going extinct it would be all of them.

I guess you are as old as I am and so a bit forgetful. You have a number of "additions" remember? They are viable right?
Everyone has viable changes.So that statement that they aren't is totally wrong.