Examples of genetic variation include eye color, blood type, camouflage in animals, and leaf modification in plants.

Person blood types, skin color, eye color, hair color, dimples, and freckles are examples of genetic variations that can occur in the human population. The Colour of the human eye depends on a person’s gene. Many of the genes linked with eye color are involved in the production, storage, and transport of pigment, known as melanin.

Genotypic variations are caused by differences in number or structure of chromosomes or by differences in the genes carried by the chromosomes. Eye colour, body form, and disease resistance are genotypic variations.

Despite this, modern genetic studies have found substantial average genetic differences across human populations in traits such as skin colour, bodily dimensions, lactose and starch digestion, high altitude adaptions, drug response, taste receptors, and predisposition to developing particular diseases.