Final answer:
Extranuclear inheritance is the inheritance patterns of genetic material that is not contained in the nucleus of the cell. An example of this is the inheritance of mitochondrial DNA, which is maternally inherited.
Step-by-step explanation:
The inheritance patterns of genetic material that is not contained in the nucleus of the cell is called extranuclear inheritance. This type of inheritance involves genetic material that is found in organelles such as mitochondria and chloroplasts.
An example of extranuclear inheritance is the inheritance of mitochondrial DNA. Mitochondria are inherited from the mother, so traits encoded by mitochondrial DNA are maternally inherited.
Extranuclear inheritance is different from nuclear inheritance, which refers to the inheritance of genetic material contained in the nucleus of the cell.