does DNA change?

[Jeffrey Sonnentag]

vceinc at aol.com wrote:
> 
> From the time a person is born until the time they die (hopefully to a
> ripe old age) does a person's DNA change.  I know mutations occur, but,
> except for the mutations, do other changes occur?
> pete
> vceinc at aol.com
> 
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There are some rearrangements and deletions (specifically among immune
cells) throughout development.  It is also possible (although hopefully
doesn't occur too often :) ) for DNA to be incorporated/altered/changed
through infections/actions of various microorganisms. . . .

Jeffrey Sonnentag