Day 318 has 187 protein-coding genes (browser view) including a common inversion polymorphism – a region that is found “flipped” in some people. It is centered around the MAPT gene.
This inversion was discovered in Iceland and found later to be widespread in Europeans but not other populations. It may have flipped multiple times in human evolution.
Click here to see all 8325744 letters of Day 318 with MAPT underlined.