Blood types how do they work?

[tigercat]

I'm not sure if anyone knows here about how blood types and how they work but my dsil needs help. Her dd is in the army now and they did blood typing on her but there were two different lists that she was on. One said she was a + and the other said she was -. Both her parents are +. Could she be a -?
My sil is worried that if she really is a + and they have labelled her a - on her dog tags that could be a problem.
tigercat

 

[phamton]

The negative blood type is a recessive gene so both parents can be a positive and have a child with a negative blood type. Now if both parents were negative and she was positive then I would be worried. My mom is O negative and both of her parents were positive. She O- and my father O+ had 2 kids: me with O+ and my sister with 0-.

I think that it is not a problem to receive negative blood in a transfusion if you are positive but the reverse does not work. That is why O negative blood donors are called universal donors. Their blood can be used for anyone whether positive or negative.

O- can donate to O+, O-, A+, A-, B+, B-, and AB+, and AB-.

She does need to find out if she gets pregnant. If she is negative and the child is positive it can cause some serious problems for the baby during delivery. If she's positive and has a negative child, it doesn't usually cause any problems.

 

[joeokw]

Ok here how is it works


If you are blood type A ... you have type B antibodies in your serum.. so you can't recieve type B blood

If you are type B you have type A antibodies in your serum you can't recieve type A blood

f you are type AB your have no type A or B antibodies hence you can recieve any type blood in a emergency

if you are type O you have both Type A and Type B antibodies so you can only get O blood.


Rh- occurs is only about 10 % of people.. so that is why you always hear about blood shortages for O- , A-, or B- and the rarest AB-.. so giving blood can save lives.

If you are RH + you have no antibodies in your serum.. so you can recieve any type of blood.... but if you are rh negative you have Rh antibodies in your blood hence you can't recieve RH positive blood. But if a woman is Rh negative and has a Rh positive child she can get a Rho Gam shot within 72 hours to avoid getting a blood dyscarsis.. ie blood clumping .

 

[tigercat]

Looking up this info for her has been very interesting. My kids have asked what their types were. My 2nd d found out she was 0- when she got pregnant and both fathers ended up being +. My oldest dd is now trying to have a baby and wasn't sure. I found a site called stuffworks.com. It had a calculator type of thing. If both parents are 0- their children will be 0-. But if like my db and dsil they have A+ and B+. Their children can be A or AB or B or 0 + or -. I forgot to find out what happens when both parents are 0 +. With the 0- there is no changing of the blood type. It seemed to be the only one (don't know about the 0+) that didn't have several different ways. They all could be a 0 and a + or a -. Now a B+ and a B+ could be a B or 0 - or +. My dh & I are both 0- so all our children should be 0-. Boy it seems confusing to me but I will let her know that her dd could be a -.
tigercat

 

[browneyes]

I know I'm confused. But I have heard someone that is + can receive - blood and it'll be ok, but not the other way around. I think I'm O+. I have no idea what my kids or SO are.

 

[Pop Daddy]

dont Vulcans have green blood

 

[joeokw]

ok here how it works for genetics of blood typing

A type A person can have a genotype of AA or AO so if their offspring can be AA or AO ,, therefore two type A parents can have offspring of either type A Or Type O because :

AA X AA = AA type A
AO x AA can be either AA or AO = type A but not type O
AOx Ao can be AA, or Ao which is type A or OO type O

The same thing goes for type B


Type O is when a BO , AO (which means parents of who are A or B can have a O baby) are type A or B have off spring

OA x OA can have which is O or can be AoxAo = Ao or AA= type A
OO x OO = type O
or Ao x Ao = Ao type A

the same thing id for B

now Ab is are because only AB can happen with AB parants or with A or B parents

Ab x Ab = Ab AA x AA can have AB or A
Ab x B can only have AB or B

so Ab is the rarest O is the most common.

 

[Pop Daddy]

Originally posted by joeokw
ok here how it works for genetics of blood typing

A type A person can have a genotype of AA or AO so if their offspring can be AA or AO ,, therefore two type A parents can have offspring of either type A Or Type O because :

AA X AA + AA
AO x AA can be either AA or AO = type A but not type O
AOx Ao can be AA, or Ao which is type A or OO type O

The same thing goes for type B


Type O is when a BO , AO (which are type A or B) have off spring

OA x OA can have which is O or can be AoxAo = Ao or AA= type A
OOx OO = type O
or AoxAo = Ao type A

the same thing id for BO

now Ab is are because only AB can happen with AB parants or with A or B parents

Ab xAb = Ab AAx AA can have AB or A
Abx B can only have AB or B

so Ab is the rarest O is the most common.

ok you think your smart Joe but you still cant explain the Vulcans green blood, can ya

 

[joeokw]

Yes Pops.... Their blood is based on copper.. ie copperglobin instead of hemoglobin... copper is green when oxidised and iron because red when oxidised. nah nah nah nah nah

 

[browneyes]

Originally posted by joeokw
Yes Pops.... Their blood is based on copper.. ie copperglobin instead of hemoglobin... copper is green when oxidised and iron because red when oxidised. nah nah nah nah nah

LOL! How about the bluebloods we hear about from time to time?

 

[Keli]

Originally posted by joeokw
Yes Pops.... Their blood is based on copper.. ie copperglobin instead of hemoglobin... copper is green when oxidised and iron because red when oxidised. nah nah nah nah nah

LOL! Good answer!

 

[tigercat]

I went back to the calculator and it said that the only type that doesn't change to another one is 2 people with type 0- blood. Everyone else can change. So parents that are 0+ can have an offspring who is 0- or 0+. Now I haven't been able to find anything about blue blood. It must be a safely guarded secret because you can't even access it on the internet.
tigercat

 

[joeokw]

Tigercat..... There is no way genetically speaking that two O type blood parents can have a
non O type child.... That is what I stated earlier

 

[tigercat]

Oh I know that. It's just that 2 0+ parents can have a 0- child but 2 0- parents will only have 0-kids. It is the only one that doesn't change. 0+ and 0+ can have 0+ or 0- kids. 0- and 0- can only have 0- kids. At least that is what the site stated. You are right though that 2 0 parents will not have an A or B kid.
tigercat

 

[jfulcer]

So that would mean that Klingon blood would be Iron based then, right? Otherwise we wouldn't have B'Elanna Torres right, since she's a mix of Klingon and Human.

Do you have a blood chart for Klingon/Human mixes?

I wonder if Vulcans and Humans could mate? Isn't Tuvok a mixed breed?

(good to see you Joe! When's the next visit??)

 

[mamajoan]

phantom and joeokw...... Congratulations and thank you! You both gave great explanations on blood typing! I found it interesting and informative! and most of all......completely understandable!

Have a great day!

Joan

 

[Blondie]

Well...I'm still confused but that's nothing unusual!

All I know is that I am 0 positive and DH is A positive and I had two sons, one is A pos. and the other is A negative!

 

[tigercat]

Phantom and joeokw I have reread your answers. Thank you. I have 0- blood so that means everyone wants me right? The only problem is I have been told that it would be really hard for me to give. I am only 4'8" tall, have no veins (at least it seems that way since to get blood out of me they use the baby needles) and have a few health problems.
tigercat

 

[phamton]

Originally posted by Blondie
Well...I'm still confused but that's nothing unusual!

All I know is that I am 0 positive and DH is A positive and I had two sons, one is A pos. and the other is A negative!

Let me try it another way. Both you and your DH carry the recessive gene for negative so you can have a child with negative blood type even though both of you are positive

.
Although eye color and hair color actually involves several genes I'll try to explain it like blood type.

Wife has blonde hair (recessive--like O blood) and brown eyes (dominant like positive blood type). O+ (like you)

The husband has brunette hair ( dominant---like A blood) and brown eyes (dominant like positive blood type.) A+ (like your husband)

You can have a son with brunette hair (dominant like A blood) and brown eyes (dominant like brown eyes.) A+ (like one son)

You can have another child with brunette hair (dominant like A blood) and blue eyes (recessive like negative blood type.) A- (like your other son) So even though neither your husband or you have blue eyes, you can have a blue-eyed son.

I hope I didn't make this more confusing. (BTW, both my parents were brunettes and had two children---my sister and I both have blonde hair.)

Bev