Fun Stuff > CHATTER
Everybody Loves Science!
Carl-E:
Give us time! (I'm type A+)
The A and B alleles showed up in Eastern Europe and Western Asia, respectively. They were most common in those regions with O predominating everywhere else until there was more migration and genetic mixing.
Also, O type is the absence of those alleles. It will decline in the general population over many generations, but it's still a majority for now.
And it seems there's a genetic or immune advantage to O type blood - type O mothers have more type O children than their partner's type when paired with either type A or B mates, indicating something's going on before birth, possible before embryo implantation, maybe even before fertilization that reduces the number of children with the alleles. That makes the reduction of type O slower, but won't arrest it completely.
LTK:
Hey, that neatly coincides with This Ars Technica article about blood types.
Barmymoo:
Thank you, both - that's fascinating and informative, and sets me up well for today's two hours of studying blood!
Carl-E:
LTK, thanks for finding a halfway decent reference. I gathered my info from a half dozen sites, most of it coming from comments by scientists on articles that were less informed, which is why I didn't reference them.
LTK:
MinuteEarth on bats and deadly virulent diseases:
//www.youtube.com/watch?v=Ao0dqJvH4a0
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version