chr start stop reference nuc variant nuc depth genic status zygosity variant ID 7 12976815 12976817 CC -- 1 GENIC homozygous 768920424 7 12977448 12977449 G C 5 GENIC homozygous 671060560 7 12978002 12978003 A G 10 GENIC possibly homozygous 671060561 7 12978733 12978734 G A 10 GENIC homozygous 671060562