Day 257 (12q21.31-12q21.33): a blonde-hair mutation


Day 257 has 22 protein-coding genes (browser view) including KITLG (KIT ligand).

A mutation near the KITLG gene increases the chance of being blonde by four-fold. It does this by changing the expression of the gene, which is involved in organizing melanocytes.

Click here to see all 8329707 letters of Day 257 with the rs12821256 blonde-hair mutation flashing.

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