Word Origin and History for mesopotamian. ancient name for the land that lies between the Tigris and Euphrates rivers (in modern Iraq), from Greek mesopotamia (khora), literally a country between two rivers, from fem. of mesopotamos, from mesos middle (see medial (adj.)) + potamos river (see potamo-).
Monogenic forms, caused by a single mutation in a dominantly or recessively inherited gene, are well-established, albeit relatively rare types of PD. They collectively account for about 30% of the familial and 3%â5% of the sporadic cases.
monogenic. adj. 1. (Genetics) genetics of or relating to an inherited character difference that is controlled by a single gene.2. (Biology) (of animals) producing offspring of one sex. (ËmÉn ÉËdÊÉn Éªk).onogenic. adj. 1. (Genetics) genetics of or relating to an inherited character difference that is controlled by a single gene. 2. (Biology) (of animals) producing offspring of one sex. (ËmÉn ÉËdÊÉn Éªk).