How do you map a genome?
I have read and understood most of Dawkins' books, but I can't remember having seen any explanation of how a genome is mapped.
I don't mean that I would like to know the physical process, although that would be interesting as well. What I would like to know is - what does it mean to say that one has mapped the Human genome?
Each of us has unique DNA, although 99% of it is identical. But, I get the impression that the mapping of the Human genome is a mapping of 100% of the genome. Or, is that impression wrong, is it mapping only the DNA that we have in common?