Difference Between Genotype and Phenotype

Genotype Phenotype
1. Genotype is the genetic make up of organism, which determines the characters. 1. Phenotype is the appearance of characters of an individual, produced as a result of interaction between gene and environment.
2. Genotype can be ascertained from the ancestory of progeny of the individuals 2. Phenotype can be read out from the individuals by direct observation
3. Genotypically F2 Mendelian ratio is represented by 1: 2: 1 3. Phenotypically F2 Mendelian ratio is represented by 3:1
4. Individuals having identical genotype usually have the same phenotype provided they are present in the same environment 4. Individuals having identical phenotype may or may not have the same genotype