Answer:
Red hair colour because it is a heritable trait that can be passed down from one generation to another. Parents pass on traits or characteristics, such as eye colour and blood type, to their children through their genes. Some health conditions and diseases can be passed on genetically too. Sometimes, one characteristic has many different forms. For example, blood type can be A, B, AB or O.
Step-by-step explanation:
Heredity refers to specific mechanisms by which characteristics or traits are passed from one generation to the next via genes. Genes encode the information for making specific proteins, which are responsible for the specific traits of an individual. Red hair is a gene that you can get from your parents or some other family members. a shaved head cut, speaking german is a trait you learn and that you don't get from a member of your family.