Xavier has dark curly hair and facial dimples. These characteristics are called _____ traits.

Question

Quizplus · Accepted Answer

Dominant traits are those that are expressed when present, meaning that if Xavier has dark curly hair and facial dimples, these traits are dominant and will be expressed in his physical appearance. Recessive traits are only expressed when an individual has two copies of the recessive gene. Polygenic traits are those determined by multiple genes and often show a wide range of variation. Codominant traits are traits where both versions of a gene are expressed equally, such as blood type. Dark curly hair and facial dimples do not fit the definitions of polygenic or codominant traits.

Xavier Has Dark Curly Hair and Facial Dimples