Possible Genotypes for Pointed Heads Phenotype
What are the possible genotypes for the phenotype of pointed heads?
The possible genotypes for the phenotype of pointed heads are PP (homozygous dominant) and Pp (heterozygous).
Understanding Pointed Heads Phenotype and Genotypes
Pointed heads are dominant to round heads. This means that individuals with the pointed head phenotype can have two possible genotypes. The homozygous dominant genotype (PP) carries two copies of the dominant allele (uppercase P), resulting in the expression of the pointed head phenotype. The heterozygous genotype (Pp) carries one dominant allele (uppercase P) and one recessive allele (lowercase p). Heterozygous individuals will also display the pointed head phenotype because the dominant allele masks the presence of the recessive allele. Only individuals with the homozygous recessive genotype (pp) will have the round-head phenotype.