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.
Aa Aa Aa. Mendel's studies of inheritance patterns in pea plants are a solid foundation for our current understanding of single-gene diseases in humans. Also called Mendelian or monogenic diseases, these kinds of diseases are caused by mutations in one gene, and they sometimes run in families.utosomal dominant single-gene diseases occur in individuals who have a single mutant copy of the disease-associated gene. In this case, the presence of a single nonmutant or wild-type copy of the gene is not enough to prevent the disease.