chr start stop reference nuc variant nuc depth genic status zygosity variant ID 18 80939935 80939936 G C 10 GENIC homozygous 110640407 18 80939951 80939952 A G 7 GENIC homozygous 110420385 18 80939955 80939956 A G 6 GENIC homozygous 110420387 18 80939961 80939962 A G 6 GENIC homozygous 110420389