DNA
Ben took the swap out of his mouth. He put it in an envelope and mailed it. He received a letter back a week later. It told him his ethnicity. He was 20% european, 70% african, and 10% asian.
It told him his ethnicity. He was 20% european, 70% african, and 10% asian. He received a letter back a week later. He put it in an envelope and mailed it. Ben took the swap out of his mouth.