chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 38973129 38973130 T C 14 GENIC homozygous 936844567 20 38981806 38981807 A G 30 GENIC homozygous 936844568 20 38981930 38981931 A C 23 GENIC homozygous 936844569