These are two different human populations. One originates in Germany and now resides mostly in Western Pennsylvania. Mexicans are a mix of Spanish colonist and natives. If a Mexican moved to Western Pennsylvania and married an Amish person, The genes of the two parties would then be mixed in their off spring. The "Genes" would be moving from one region of the world to another.
Feel free to be the first
Please review the linked page for context.
If you can think of something better than this,
please add it to the database