in the x direction, the water wants to flow in that direction) For a given hydraulic. conductivity, the vertical flow rate depends on the sum of the gravitational potential energy. gradient per unit weight of water (dz/dz =1) and the vertical gradient in soil water pressure.
Origin and spread of the 1278insTATC mutation causing TayâSachs disease in Ashkenazi Jews: Genetic drift as a robust and parsimonious hypothesis. Human Genetics 114 (4): 366â376. pmid 14727180.
Tay-Sachs disease and resistance to tuberculosis. Tay-Sachs is a rare genetic disease that results in an abnormal accumulation of neuronal lipids caused by a defective lysosomal enzyme, Î±-hexosaminidase. Alleles for this disease are more prevalent in certain populations, the most well-known being the Ashkenazi Jews.t is of note that a particular genetic disorder leads to infectious disease hypersusceptibility, and this relationship has provided the basis for a preventative. Specifically, the relationship between hemosiderosis and typhoid fever has led to the development of a vaccine that intervenes in this relationship.