Why is blood type O the most common?
Blood type O is the most common due to the fact that O people have no Antigens of A or B. Back like 100’000 years ago and earlier it was very rare to find a Blood Type O, but now we are becoming more adaptive to other humans and mix breeding Altot so blood type O is more common in our days. The O Blood type has a more common chance of being in a child if one of the parents was O and the other one was A or B, O has a special genetic side to it which stays in more children over the others, like if 2 parents are A and A there child will most likely be A or B unless they have a relative that had O then the child would be maybe 30% chance of being O, if one parent was O and one was A or B then there’s a 85% chance of it being an O child.
