chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 87287540 87287541 G T 20 GENIC homozygous 881957884 1 87300795 87300796 A T 3 GENIC heterozygous 881957885 1 87332690 87332691 C A 19 GENIC homozygous 881957886 1 87433541 87433542 T C 10 GENIC homozygous 881957887