chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 83434275 83434276 C T 12 GENIC homozygous 61451255 1 83434732 83434733 T C 7 GENIC homozygous 61451256 1 83436196 83436197 C T 12 GENIC homozygous 61451258