Current Research in Social Psychology (CRISP) is a peer reviewed, electronic journal publishing theoretically driven, empirical research in major areas of social psychology.
1 Leishmaniasis, caused by the leishmania genus of protists, and transmitted by the African sand fly;  Toxoplasmosis, caused by Toxoplasma gondii, and transmitted from contaminated animal meat or contaminated feces of infected animals;
Single gene disorders are caused by DNA changes in one particular gene, and often have predictable inheritance patterns. 1  Over 10,000 human disorders are caused by a change, known as a mutation, in a single gene. Dominant diseases are single gene disorders that occur in the heterozygous state â when an individual has one mutant copy of the relevant gene and one healthy copy.