alphabetic layout:
abcdefghij
klmnopqrst
  uvwxyz  
mutate_slow(10):
lbdcefhyik
jan ogqrst
 umvwxzp  
mutate_fast(10):
abldef cgj
kumnopqrst
 hi wxy zv
mutate_genomic(10):
airbcdef h
ujklmnog s
  tvwxyzap
alphabetic layout:
abcdefghij
klmnopqrst
  uvwxyz  
bred with QWERTY:
awfrbyukcd
etijghnolm
  psqvxz  
Dvorak:
  pyfgcrl 
aoeuidhtns
 qjkxbmwvz
bred with Dvorak:
a pcghden 
ajilmofvrs
 uqkwbyztx