Answer :

Genotypes are the different allele combinations that an organism has, while phenotypes are the traits that show up physically.

So, two organisms can have the same phenotypes by looking alike, but their genotypes may be, in fact, very different.

Answer;

This is because the genotype may be have recessive effects or dominant effects.

For example; Genotype RR AND Rr are going to produce the same phenotype and look the same, but the one with the Rr has recessive gene.

Examples;

-Genotype is the organisms genetic makeup or allele combinations.

-Phenotype is the physical appearance or visible traits.

A dominant allele is masks the effect of recessive allele making them not visible or seen phenotypically.