chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 233979830 233979831 C T 22 GENIC homozygous 74754630 1 233981904 233981905 T C 28 GENIC homozygous 74754632 1 233982427 233982428 C T 34 GENIC possibly homozygous 74754634 1 233983520 233983521 G A 21 GENIC homozygous 74754636