plink chromosome code
X X chromosome -> 23 Y Y chromosome -> 24 XY Pseudo-autosomal region of X -> 25 MT Mitochondrial -> 26 1-22 autosome -> 1-22
X X chromosome -> 23 Y Y chromosome -> 24 XY Pseudo-autosomal region of X -> 25 MT Mitochondrial -> 26 1-22 autosome -> 1-22