Description
The genotype describes the genetic information of an organism. You cannot see the genotype from the outside, as you can’t see the DNA directly. But the genotype determines how an organism develops. This in turn leads to observable differences which is referred to as a person’s phenotype. However, different genotypes don’t need to result in different phenotypes. This is mostly the case if genotypes are silent (e.g., not changing the resulting protein) or if they affect non-coding DNA.