chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 14563633 14563634 A C 30 GENIC homozygous 109303534 20 14564052 14564053 T C 30 GENIC homozygous 109303544 20 14564056 14564057 C T 32 GENIC homozygous 109303546