Gin and tonic Gin and tonic A gin and tonic is a highball cocktail made with gin and tonic water poured over ice. It is usually garnished with a slice or wedge of lime. The amount of gin varies according to taste. Suggested ratios of gin to tonic are between 1:1 and 1:3. In some countries (e.g., UK), gin and tonic is also marketed pre-mixed in single-serving cans. In the United States, most bars use "soda out of a gun that in no way, shape or form resembles quinine water", according to bartender Dale DeGroff. To get a real gin and tonic, DeGroff
Human genetic resistance to malaria Human genetic resistance to malaria Human genetic resistance to malaria refers to inherited changes in the DNA of humans which increase resistance to malaria and result in increased survival of individuals with those genetic changes. The existence of these genotypes is likely due to evolutionary pressure exerted by parasites of the genus "Plasmodium" which cause malaria. Since malaria infects red blood cells, these genetic changes are most commonly alterations to molecules essential for red blood cell function (and therefore parasite survival), such as hemoglobin or other cellular proteins or enzymes of red blood cells. These alterations generally protect red blood