If Sarah was donating blood, that’s stupid. O- has no antigens that could damage anyone’s blood. The A B and Rh+ factors have to matched: AB+ can take anything, having the A, B, & RH+ antigens. AB+ can only donate to other AB+ types. O- is the universal donor, but can only be transfused with O-. If you don’t have the antigen (A,B, or RH+), the antigen will cause an allergic reaction. If you have it, blood with the same antigen or blood without it will be okay.
My mother is O-, I am AB+ (She’s univ doner, I’m univ Recipient) please explain to me that I am from another planet, or if not, how I came to be from this one.
(or if you prefer the elimination method, what type was my father?)
The only possible explanation for that is genetic mutation. Very very rare, but it could happen.
Your mother could have an RH- recessive gene. But she would be an OO, and theoretically unable to have an AB child. You might want to get that checked out.
I can suspend disbelief about all the robots from the future stuff, but I expect someone to do a little fact-checking about the medical stuff.
Really, I like this show.
I thought that was a bit of plot silliness, but it reminds me I should know my wife and daughter’s blood types…
Maybe you’re adopted?
“How did you find out you were adopted?” “From reading a nitpicking thread about a sci-fi TV show.” 
My husband is 30 and doesn’t know his blood type. His mother doesn’t know what it is either. That baffles me. I don’t remember a time when I didn’t know my blood type.
Maybe it’s too much crappy TV, but if you could explain where the positive and negatives fit in…
-Joe
So this show’s set in West Virginia?
I don’t know what type my Mother is, but my Dad was AB+, and I (and all my siblings) are also all AB+.
I’m not sure where that sits with the rules of genetics.
Your mother would have to be A, B or AB.
I found a site with a nice site with a calculator for handy dandy blood type figuring.
As I explained in the other thread, it went right over my head. I would never have noticed it at all if I did not see other Dopers complaining about it. I’ve been out of high school for over 30 years, and frankly, cross-matching blood types just isn’t something I need to know in order to conduct my day-to-day life. So, if a TV show gets it wrong, I’m utterly indifferent to it. It doesn’t interrupt my suspension of disbelief or alter my enjoyment of the program in the slightest.
Cross-matching isn’t quite the same as blood typing. Basically it’s an extra step after blood typing to make sure that the donor blood won’t react with the recipient blood because there are lots of other antigens and antibodies that could still cause reactions even in blood transfusions of the same type blood.
Does anyone remember how there was this writer’s strike going on? And how it meant nothing in a script could be changed, even if it was an obvious dumb mistake like the blood type mix up?
It’s not that they didn’t know any better, it’s that they couldn’t have fixed the error if they wanted to.
Couldn’t they have looked it up when they were writing it? It only took me a couple seconds on google to find the calculator.
Yeah, it’s annoying but I really didn’t expect much better from the show.
Meh. It still doesn’t affect my enjoyment of a TV program. I’m indifferent to it, unless it would have a direct life-or-death affect on my personal health.
We in the UK and Ireland are only getting the chance to care about it as of last night, when it premièred on the Virgin1 digital station.
I think the website is down. I put a few drops in the disc drive and it still won’t tell me anything. :eek: