chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 231811378 231811379 G A 21 GENIC heterozygous 815270617 1 231814098 231814099 G A 20 GENIC heterozygous 815270618 1 231816801 231816802 G A 20 GENIC heterozygous 815270619