9:3:3:1 Using white tall (RRBB)and black short (rrbb) as an instance Then I have white tall:9 White short:3 Black tall:3 Black short: 1 So this shows the phenotypic expression of a heterozygous with a dominant and recessive growth The four phenotype in this dihybrid in a Punnett square is stated above as 9:3:3:1 Thanks
