chr,start,stop,reference nuc,variant nuc,depth,genic status,zygosity,variant ID 12,19172519,19172520,G,C,20,GENIC,homozygous,976757336 12,19172520,19172521,G,T,21,GENIC,homozygous,976757337 12,19172521,19172522,G,T,22,GENIC,homozygous,976757338