When first generation plants are allowed to self pollinate what type of traits appear in second-generation?

When first-generation (F1) plants are allowed to self-pollinate, the second generation (F2) exhibits a mixture of traits due to the segregation of alleles. This can result in a phenotypic ratio reflecting dominant and recessive traits, often following Mendelian inheritance patterns. For example, in a typical dihybrid cross, the F2 generation may show a 9:3:3:1 ratio of phenotypes. Thus, both the dominant traits and recessive traits may appear in varying proportions.