chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 6956303 6956304 G GT 21 GENIC homozygous 45676236 20 6961054 6961055 G GA 14 GENIC homozygous 45676239 20 6961856 6961857 T TA 10 GENIC homozygous 45406668