chr start stop reference nuc variant nuc depth genic status zygosity variant ID 8 19946953 19946954 T C 20 GENIC homozygous 67844576 8 19946991 19946992 G A 23 GENIC homozygous 69393834 8 19946992 19946993 A T 22 GENIC homozygous 69393835