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This Concept Map, created with IHMC CmapTools, has information related to: Evolution of Lactose Tolerance, Each population expresses the enzyme lactase with a different allele These populations are Sub-Saharan Africa and Sudanese, There specific regions with the ability to handle high LDC Which is.. Lactose Digestion Capacity High LDC is due to intestine being able to restrain high levels of lactase in the small intestine after infancy, Lactase Persistence Genes between Gene-culture coevolution, Each population expresses the enzyme lactase with a different allele Found out by... Lactose Tolerance Test, Northern Europeans,descendants in North America and Australia, and Northern &Eastern Africans How was this tested? Stastical Methods, Evolution in Expression of the Enzyme Lactase Correlated with Specific alleles in the gene and specific populations, Northern Europeans,descendants in North America and Australia, and Northern &Eastern Africans How was this tested? Phylogenetic Comparative Method, Evolution of Lactose Intolerance introduces Gene-culture coevolution, Lactase Persistence Genes Caused by Cattle milk protein genes, Sub-Saharan Africa and Sudanese From the camels Consumption of Fresh milk, Northern Europeans,descendants in North America and Australia, and Northern &Eastern Africans Why do some have high LDC? Consumption of Fresh milk, It was known that only one allele was responsible for the expression of the enzyme lactase. It was falsified by Testing for that one allele in populations and finding out other alleles were responsible for expressing the enzyme lactase, Northern Europeans,descendants in North America and Australia, and Northern &Eastern Africans Why do some have high LDC? Groups could digest and absorb water content of milk as opposed to those who were lactose intolerant, Specific alleles in the gene and specific populations Found out by... Lactose Tolerance Test, What might have triggered these populations that only certain alleles applied for certain populations in expressing lactase enzyme? And some Groups could digest and absorb water content of milk as opposed to those who were lactose intolerant, Northern Europeans,descendants in North America and Australia, and Northern &Eastern Africans How was this tested? Maximum Likelihood, Each population expresses the enzyme lactase with a different allele These populations are Northern Europeans,descendants in North America and Australia, and Northern &Eastern Africans, Higher frequency of Lactose persistance have been found in areas where fossil evidence has shown long history with cattle. specifically in Places with history of Neolithic cattle breeding, Lactase Persistence Genes between Cattle milk protein genes, What might have triggered these populations that only certain alleles applied for certain populations in expressing lactase enzyme? Some populations Consumption of Fresh milk