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Lactase persistence or lactose tolerance is the continued activity of the lactase enzyme in adulthood, ... [33]) and the Khoe from South Africa. ...
Today, lactase persistence can be found in 90% or more of the populations in Northwestern and Northern Central Europe, and in pockets of Western and Southeastern Africa, Saudi Arabia, and South Asia. It is not as common in Southern Europe (40%) because Neolithic farmers had already settled there before the mutation existed.
The Fulani lactase persistence variant –13910*T may ... Africans and other African populations by the time the Bantu migration had spanned into South Africa. ...
[2] [28] The frequency of lactase persistence, which allows lactose tolerance, varies enormously worldwide, with the highest prevalence in Northwestern Europe, declines across southern Europe and the Middle East and is low in Asia and most of Africa, although it is common in pastoralist populations from Africa.
At her time at University of Pennsylvania, Tishkoff became an Integrates Knowledge Professor in 2008 for her work in African ancestry, lactase persistence, and taste sensitivity. [35] In 2009, Tishkoff was awarded the National Institutes of Health Director’s Pioneer Award to fund her research in Africa detailing genetic and environmental ...
Lactase persistence One of the best known examples is the prevalence of the genotype for adult lactose absorption in human populations, such as Northern Europeans and some African societies, with a long history of raising cattle for milk.
The Sub-Saharan West African Fulani, the North African Tuareg, and European agriculturalists, who are descendants of these Neolithic agriculturalists, share the lactase persistence variant –13910*T. [24] While shared by Fulani and Tuareg herders, compared to the Tuareg variant, the Fulani variant of –13910*T has undergone a longer period of ...
Genetic evidence shows that lactase persistence developed in East African populations between 7000 BP and 3000 BP, which is consistent with existing evidence for the introduction of livestock. [11] According to genomic data from 2019, the herders moved into Eastern African around 5,000 BP, and they carried both ancestry from the Near-East and ...