What is the phenotypic ratio for 121?

To determine the phenotypic ratio for a specific number like 121, more context is needed regarding the genetic cross or traits being studied. Typically, phenotypic ratiOS arise from specific genetic crosses, such as Mendelian inheritance patterns (e.g., a 3:1 ratio for a monohybrid cross). If you provide details about the traits and parental genotypes involved, I can help calculate the phenotypic ratio.