chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 220321198 220321199 G C 24 GENIC homozygous 642213135 1 220321200 220321201 C T 24 GENIC homozygous 642213136 1 220321405 220321406 C A 26 GENIC homozygous 642213137