chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 78218237 78218238 C G 20 GENIC homozygous 989822227 1 78218413 78218414 T C 7 GENIC homozygous 989822228 1 78218537 78218538 C A 15 GENIC homozygous 989822229