When we say that only about 1% of DNA is coding (i.e. for protein synthesis) what exactly are we counting??
As i understand there are genes, about 40000 of them, and about 25000 is coding... so that's definitely more than 1%...
I also tried counting base pairs: add up bp length of each chromosome ("all"); add up bp lengths of each protein-coding gene; then (all) - (protein-coding) = non-coding. Here i also got close to a 50-50 ratio.
So which elements of DNA are considered for this 99-1% ratio?