chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 38973129 38973130 T C 12 GENIC homozygous 942685947 20 38981806 38981807 A G 22 GENIC homozygous 942685948 20 38981930 38981931 A C 33 GENIC homozygous 942685949