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My blood type changes...

A person with type O negative blood can't change their blood type by transfusion. At least, not if they want to live. AB positive people are laughing.
 
Big Al said:
A person with type O negative blood can't change their blood type by transfusion. At least, not if they want to live. AB positive people are laughing.
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No one can change their blood type by transfusion. Even if you were AB and replaced your blood with another type, what your bone marrow produces is what blood type you have. Bone marrow transplants are the only cases of blood type changing. Unless there is something about chimeras that I don't know.
 
RenaissanceBiker said:
I can change my hair color. I've been slowly making grey for a number of years now.
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I was doing that but then decided I didn't like it so now I'm changing back.

JonnyFive said:
I actually didn't know that, so I learned something today.

However, I said "type," not "color," so I'm still not wrong. :)

Besides, how do you know I'm not a horseshoe crab?
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Or a lobster. Don't they have green blood?
 
skeptigirl said:
No one can change their blood type by transfusion. Even if you were AB and replaced your blood with another type, what your bone marrow produces is what blood type you have. Bone marrow transplants are the only cases of blood type changing. Unless there is something about chimeras that I don't know.
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I'm aware of that: I'm not talking about a permanent change there, skeptigirl. And most transfusions aren't complete replacements. But for those that are, you'd have a body full of the "wrong" type blood for 28 days, or whatever it is.

In the case of AB, I wonder how quickly the "old blood" would start to ressert itself if it had been replace by type O blood.
 
I can change my skin colour as follows:

When I perform the four hour-long Ritual of Abashed Nakedness on August 15th, the chants turn my skin from pink to angry red.
The same ritual when performed exactly six months later brings about a blue tinge.
I can change my skin to an interesting green complexion by first chanting Makra's Incantation and then sealing the spell by the ingestion of the sacred Cockles of Gombra.
I can't do yellow yet, but I've seen a devotee of that skill who happened to be in hospital at the same time as me.
 
Big Al said:
I'm aware of that: I'm not talking about a permanent change there, skeptigirl. And most transfusions aren't complete replacements. But for those that are, you'd have a body full of the "wrong" type blood for 28 days, or whatever it is.

In the case of AB, I wonder how quickly the "old blood" would start to ressert itself if it had been replace by type O blood.
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Right away. There isn't a cycle that every 28 days you trade in your old blood. It's a constant turnover.
 
What happened to 10001? Well it doesn't look this thread will reach 10 pages. No amusement for me. :(
 
What you are talking about isn't unknown to biology. Apparently, you are a chimera, that is, a person with more than one set of DNA. The variable expression is probably do to a 'willed' hormonal shift.

It is also likely that you could survive after deep freezing.
 
Well, I can change my hair color-without dying it. I started out with dark hair when I was born, then it turned white blonde, then honey blonde, and then light brown, and now it's dark brown. So, there.

Next I'm gonna turn it silver, but not just yet...
 
10001 said:
Infact I believe I can chnge it at will. Have not tested. Dont think I will test it for a while.

And my blood and body embodies the answer to all the sickness and diseases of this world.

But.. I dont think this world deserves it, yet.

So... Put the pancake on the bunny's head!!!!!!!!!!!

Now the question is...

is this normal? or is at least someting that does occur in someone else? the blood that changes I mean...
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Hey, I bet you can change your blood type from liquid to solid. Want to try it?
 
JonnyFive said:
Besides, how do you know I'm not a horseshoe crab?
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horseshoe crabs cannot operate computers. They've been around so long, that if they could they'd've invented the damn things. That they haven't shows that they can't. So you're not one of them.

You may, of course, be a cephalopod -- they're known for trying to deceive :)
 
marplots said:
What you are talking about isn't unknown to biology. Apparently, you are a chimera, that is, a person with more than one set of DNA. The variable expression is probably do to a 'willed' hormonal shift.

It is also likely that you could survive after deep freezing.
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"More than one set of DNA"? Hrm. Got any links to any peer-reviewed papers on this phenomenon? I know you're new, so you can't actually post links, but you can work around the system by adding spaces, like this:

http:// this. is. a. test. com/

I'd be interested in further reading.
 
10001 said:
Infact I believe I can chnge it at will. Have not tested. Dont think I will test it for a while.
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So where did this very strange belief come from? Does your blood feel like it changed type or something?
 
Jackalgirl said:
"More than one set of DNA"? Hrm. Got any links to any peer-reviewed papers on this phenomenon? I know you're new, so you can't actually post links, but you can work around the system by adding spaces, like this:

http:// this. is. a. test. com/

I'd be interested in further reading.
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I forgot to get setup so I can access the library databases from home, but I remembered reading about chimeras on Damn Interesting, so here's their source:

http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/M/Mosaics.html#TetragameticHuman

And from Pub Med, which I can accesss:

http://www.ncbi.nlm.nih.gov/entrez/..._uids=17026615&query_hl=4&itool=pubmed_docsum

By definition, a chimera is produced by the fusion of two different zygotes in a single embryo, while a mosaic contains genetically different cells issued from a single zygote.
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http://www.ncbi.nlm.nih.gov/entrez/..._uids=15847657&query_hl=4&itool=pubmed_docsum

The case of a healthy woman with serologic blood group AB and her biologic father showing blood group O was investigated. Further analysis, including blood, buccal swabs, and nail clippings, revealed a tetragametic chimerism
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If you want to look up more, since those are just clippings from abstracts, look for tetragametic chimera. Apparently what happens is that you get the two embryos merging into one individual, producing a similar, but different set of genes in the cells.
 
Ah! Thanks, Lost, that is indeed interesting! I guess I was thrown off by the phrase "more than one set of DNA". But those links are cool; I learned something new today. : )
 
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