chr start stop reference nuc variant nuc depth genic status zygosity variant ID 18 74517709 74517710 A G 32 GENIC homozygous 110704648 18 74797928 74797929 A G 20 GENIC homozygous 110403897 18 74916172 74916173 A T 22 GENIC homozygous 110404131