What is the difference between genotype and phenotype?




Genotype refers to the specific genetic makeup of an individual, particularly the combination of alleles (gene variants) they inherit for a particular trait or gene.

Phenotype refers to the observable physical or biochemical characteristics and traits of an individual that result from the interaction between their genotype and the environment.

Example: For a gene responsible for eye color, a person’s genotype might be represented as having two alleles for brown eyes (BB), one allele for brown and one for blue (Bb), or two alleles for blue eyes (bb).

Example: If an individual has the genotype BB or Bb for eye color, their phenotype will typically manifest as brown eyes, as the brown allele is dominant. However, if they have the genotype bb, their phenotype will manifest as blue eyes, as the blue allele is recessive.

Related Questions