Final answer:
Genotype refers to the genetic makeup of an individual, while phenotype describes the observable characteristics.
Step-by-step explanation:
Genotype refers to the genetic makeup of an individual based on the genetic material (DNA) inherited from one's genetic contributors.
Phenotype describes an individual's observable characteristics, such as hair color, skin color, height, and build.
For example, if a person has a genotype of TT for the hair color gene, they would have a phenotype of having dark hair.