genotype,celltype,replicate
sample1,Wt,typeA,1
sample2,Wt,typeA,2
sample3,Wt,typeA,3
sample4,KO,typeA,1
sample5,KO,typeA,2
sample6,KO,typeA,3
sample7,Wt,typeB,1
sample8,Wt,typeB,2
sample9,Wt,typeB,3
sample10,KO,typeB,1
sample11,KO,typeB,2
sample12,KO,typeB,3