Common types of physical traits include characteristics related to height, weight, skin, build, complexion, hair and eye. For example, the physical traits of eyes can be divided up by eyebrow size, eyebrow shape, eye shape, eye color and eyelash length.
Different physical traits related to hair include hair color, texture, hair curl and hairline. In science, a physical trait may also be known as a phenotype. Physical traits are often inherited and based on a person's genetic material. Other types of heritable physical traits include the presence or absence of freckles, dimples, chin clefts, thumb and finger shapes, and body hair, such as on the back of the hand. Genetic physical traits such as these may be dominant or recessive.