How Are Traits Inherited From Parents?
Traits are characteristics each person has that make up everything about him. These can include physical characteristics such as appearance, as well as psychological characteristics, like a tendency to be creative or optimistic. Some traits, including many aspects of psychology, are believed to be created or influenced by the world around a person, her environment. Many traits, however, are inherited from parents through DNA. Common traits known to be inherited include eye color, hair color and texture, the presence of attached or detached earlobes and a wide variety of diseases, including sickle cell anemia, hemophilia and cystic fibrosis. Other traits have a mixture of inheritance and environmental influences that affect the final outcome in the child, including many diseases such as Alzheimer’s disease and bipolar disorder.
