chr start stop reference nuc variant nuc depth genic status zygosity variant ID 8 21700701 21700702 G C 4 GENIC homozygous 808183556 8 21700704 21700705 T C 3 GENIC homozygous 808183557 8 21700708 21700709 G C 3 GENIC homozygous 808183558