[nightdriver]

Yes, I know that, but it is not what I was addressing. I want science to explain the forces that CAUSE the changes, not the nature of the changes. You're not reading carefully. Thanks.

[Mylo]

Your not using language carefully. Words mean things. What you said was incorrect.

The force that cause the change is electromagnetism from radiation or molecular charge. Light (i.e. electromagnetic radiation) is mutagenic; as are many chemicals that can bind to DNA (through electromagnetic attraction).

What it changes is the sequence of the DNA (sometimes), causing (sometimes) a change in the protein that is expressed.

All this is a highly studied phenomenon. I took an entire course on Mutation. There are many text books that can explain it all to anyones complete and total satisfaction. It is all measurable, observable and replicable.