the first societies in north america came from the southern plains.
the first societies in north america came from the southern plains.
where did the first societies in north america come from?
southern plains
Na
Na
with the increasing consumption of milk products these societies developed a lactase persistence by epigenetic inheritance, which means that the milk-digesting enzyme lactase was present in their body during the whole lifetime, so they could drink unfermented milk as adults too. this early habituation to lactose consumption in the first settler societies can still be observed today on regional differences of this mutation’s concentration. it’s estimated that about 65% of world population still lacks it. since these first societies came from regions around eastern turkey to central europe, the gene appears more frequently there and in north america, as it was settled by europeans. on the contrary, lactose intolerance is much more present in asian countries.
lactic acid fermentation