Ok
""Within the past couple of years, I have written to numerous scientists who specialize in the fields of anthropological and molecular evolution (my research background is in cell biology & immunology) to inquire about the origins & appearance of the AB blood type. Specifically, I asked what is the first human or human-related sample that has typed as AB using molecular biology (DNA) methods; and when is the AB blood type believed to have emerged in human history?
The consensus from the answers I received is represented in several specific responses quoted below, “ABO systems have not been widely analyzed in ancient remains [using molecular biology techniques], there are very few papers on the blood system.” “There certainly is controversy as to when group B (and thus AB people) emerged.” A specialist at Harvard replied, “It is CERTAINLY [his caps, not mine] well before 10,000 years ago”, “some place the origin of B @ 100,000 years ago.” “I am very sure it was long before 1,000 years ago-based on DNA divergence from the primordial group A gene”. One of the world’s foremost authorities on the molecular analysis of the ABO blood group, whose laboratory first cloned the human ABO genes, was quite adamant in his response that D’Adamo’s claims that the AB blood type is only 1,000 years old “does not fit with the current theory of the evolution of the ABO gene”…and “is not based on scientific evidence”.
See the bold ? Scientists in the first instance don’t write to other scientists. We do what is called a literature review. We go though all the relevant peer reviewed published research in peer reviewed scientific journals.
So I am going to question this persons research background. Research 101 requires literature review. We don’t publish uncollaberated heresay.