You are studying two genes in roses. Two alleles, R and r, affect petal color: R/R roses have red petals, and r/r roses have white petals; R is dominant and r is recessive. In addition, two alleles—, C and c, affect petal shape: C/C individuals have circular petals, and roses with the genotype c/c have square petals; C is dominant. If you cross two dihybrid roses (R/r ; C/c), _____ progeny from this cross will have red circular petals and _____ will have white circular petals.
