The genotype refers to the genetic composition of an organism, meaning the genetic information it possesses in its cells. It is determined by the genes we inherit from our parents.
Genes are segments of DNA that contain instructions for the formation of proteins and determine our hereditary characteristics.
The genotype can influence how certain traits are expressed in the phenotype, which is what we can observe externally.
Each individual has a unique genotype and can inherit different combinations of genes that determine their appearance, abilities, and genetic predispositions.