chr start stop reference nuc variant nuc depth genic status zygosity variant ID 2 237135574 237135575 C G 36 GENIC homozygous 110839412 2 237135979 237135980 G T 20 GENIC homozygous 110839413 2 237135982 237135983 C A 20 GENIC homozygous 110839414