Phenotype Definition

Phenotype refers to the sum of the living organism’s observable characteristics, as a result of genetic traits and environmental influences.

The phenotype in biology is defined as the observable traits or characteristics of an organism which is the result of interaction of genes and environmental factors. These traits include appearance, behaviour, metabolism and any other trait we can observe.

The phenotype of an organism includes its physiological, biochemical, and behavioral properties. Unlike genotype which is inherited from the parents, the phenotype is affected by lifestyle and environmental factors. Environmental factors include temperature, nutrition, humidity and mental health of the organism.

For example, flamingoes are originally white in colour, but turn pink due to pigments they acquire from their diet. Thus, flamingoes portray how they are influenced by environmental factors. It also suggests that the phenotype of an organism constantly changes, depending on the environment factors.

Main Article: What Is Phenotype? Biology Questions

Frequently Asked Questions on Phenotype Definition

Define phenotype.

Phenotype is defined as the sum total of observable characteristics of an organism.

What are some examples of phenotype?

Examples of phenotype include height, eye colour, hair colour, and so on.

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