![]() The Ural Mountains prevented a large migration westwards from Asia, although small numbers of Caucasians entered eastern Europe, carrying with them the gene for blood group B that they picked up by intermingling with the Asian Mongolians. The invaders taking the southern approach became the ancestors of the Mediterranean people and western Europeans, and carried with them the gene for blood group A. This barrier split the migrations of the blood groups into two basic routes a northern stream and a southern one. ![]() (25)Īn almost continuous belt of mountainous terrain extends from the Urals in Russia to the Caucasus in Asia, and then onto the Pyrenees of southern France. (16) In a study among fourteen Hindu caste groups, besides Christian and Muslim populations of West Godavari District, Andhra Pradesh, India All the Hindu castes except Brahmin, Kshatriya and Reddy exhibited relatively higher frequency of group B over group A (24) In a study of ABO distribution along the Silk Route of Northwestern China a distinct increase of blood group B was seen, especially when those subjects of Mongolian extraction were compared to Caucasian. Since the caste system was the direct result of consecutive layers of foreign conquest, it appears that the B gene may have been introduced into the Indian subcontinent via conquest. Higher concentrations of the group B gene exists in direct relationship with the demographics of the pre-existing caste system. Essentially omnivores, group B may have been the only blood group whose immune systems were capable of functioning with a diet described by one Roman historian as “soured milk and mare’s blood.” In addition to having the ability to survive pestilence, blood group B women may be more fertile than the A and O counterparts (14) and may begin to menstruate earlier. And the second is the ability to reproduce. Under times of famine, two biologic functions diminish: First is the ability to fend off infection. At high altitudes blood O group had had lower concentrations of estradiol and testosterone, blood group B the highest. There is some science behind this theory: For example, variability in the levels of the hormones testosterone, estradiol, and somatotropic hormones in mountaineers of the Pamirs and Kirghizes was examined in relation to their place of residence in terms of elevation above sea level. It is possible that blood group B may have been the only blood group with the capabilities to survive in such a harsh environment. ![]() Life in the tropical flat savannahs of eastern Africa gave way to a harsher existence as the Cro-Magnon hunters migrated to the colder, drier, mountainous areas of the subcontinent and the barren endless plains of the central Asian steppes. But unlike A, which began to supplant group O as a response to new types of infections, then thrived as a result of the new dietary changes, group B appears to have been more of a response to climatic changes, followed by a different set of dietary adaptations. Like the environmental conditions which spawned the advent of group A, the development of blood group B was in large part a response to changes in the environment. ![]() The gene for blood group B first appeared in significant numbers somewhere around 10 to 15,000 B.C., the tail end of the Neolithic period, in the area of the Himalayan highlands now part of present day Pakistan and India. “ BLOOD GROUPS AND THE HISTORY OF PEOPLESĮxcerpted from the Complete Blood Type Encyclopedia by Peter D’Adamo, published by Penguin Putnam Inc, Copyright 2002 The Nomadic Mutation ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |