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'''Blood type''' is a characteristic of human red blood cells determined by the presence of specific surface [[antigen|antigens]]. Blood type designations use two systems, the ABO designation and the Rh factor designation. There are four ABO types and two Rh types, yielding eight possible human blood types: O+, A+, B+, AB+, O-, A-, B-, AB-. O-positive is the most common blood type in most early [[21st century]] human populations.
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'''Blood type''', sometimes also referred to as '''blood group''', was a characteristic of [[Human]] red [[blood]] {{dis|cell|biology}}s determined by the presence of specific surface [[antigen]]s. Human blood type designations commonly used two systems for determining blood transfusions: the AB designation and the Rh factor designation, although there were other systems in use for other purposes. There were four AB types and two Rh types, yielding eight types: O+, A+, B+, AB+, O−, A−, B−, and AB−. O was the designation used when the blood cells in question possessed neither A nor B antigens. O-positive was the most common blood type in most early [[21st century]] Human populations.
   
[[Jonathan Archer|Captain Archer]] tells [[Loomis]] and [[T'Pol]] that his blood type is B-negative ([[ENT]]: "[[Carpenter Street]]"). Likewise, [[Julian Bashir]] has type B-negative blood. ([[DS9]]: "[[In Purgatory's Shadow]]"). This is a rare blood type in many human populations in the early [[21st century]].
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[[Detroit]] [[prostitute]] [[Georgia Tandy]] had a blood type of O-negative. [[Captain]] [[Jonathan Archer|Archer]] told {{dis|Loomis|21st century}} and [[T'Pol]] that his blood type was B-negative. ({{ENT|Carpenter Street}}) Likewise, [[Julian Bashir]] had type B-negative blood. ({{DS9|In Purgatory's Shadow}})
   
[[Vulcan|Vulcans]] appear to use a similar system for blood type designation, as both [[Spock]] and [[Sarek]] have [[T-negative]] blood ([[TOS]]: "[[Journey to Babel]]"). However, the number of Vulcan blood types is unknown.
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[[Vulcan]]s appear to have used a similar system for blood type designation, as both [[Spock]] and [[Sarek]] had [[T-negative]] blood. ({{TOS|Journey to Babel}})
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[[Curzon Dax]] and [[Jadzia Dax]] both had different blood types. Bashir cited this as evidence of how different [[Trill]] are to each other, despite carrying the others memories. ({{DS9|Dax}})
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After being changed into a [[Solids|Solid]] by the [[Great Link]], [[Odo]]'s blood type was O-negative. ({{DS9|Broken Link}})
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== External links ==
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* {{NCwiki}}
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* {{wikipedia}}
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[[de:Blutgruppe]]
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[[Category:Biology]]

Revision as of 16:58, 8 December 2014

Blood type, sometimes also referred to as blood group, was a characteristic of Human red blood cells determined by the presence of specific surface antigens. Human blood type designations commonly used two systems for determining blood transfusions: the AB designation and the Rh factor designation, although there were other systems in use for other purposes. There were four AB types and two Rh types, yielding eight types: O+, A+, B+, AB+, O−, A−, B−, and AB−. O was the designation used when the blood cells in question possessed neither A nor B antigens. O-positive was the most common blood type in most early 21st century Human populations.

Detroit prostitute Georgia Tandy had a blood type of O-negative. Captain Archer told Loomis and T'Pol that his blood type was B-negative. (ENT: "Carpenter Street") Likewise, Julian Bashir had type B-negative blood. (DS9: "In Purgatory's Shadow")

Vulcans appear to have used a similar system for blood type designation, as both Spock and Sarek had T-negative blood. (TOS: "Journey to Babel")

Curzon Dax and Jadzia Dax both had different blood types. Bashir cited this as evidence of how different Trill are to each other, despite carrying the others memories. (DS9: "Dax")

After being changed into a Solid by the Great Link, Odo's blood type was O-negative. (DS9: "Broken Link")

External links