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www.disabled-world.com/calculators-charts/blood-chart.php

A blood type (also called a blood group) is defined as the classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells (RBCs). A series of related blood types constitutes a blood group system, such as the Rh or ABO system.

en.wikipedia.org/wiki/Blood_type

A blood type (also called a blood group) is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells (RBCs). These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system.

www.livescience.com/36559-common-blood-type-donation.html

In general, the rarest blood type is AB-negative and the most common is O-positive. Here's a breakdown of the most rare and common blood types by ethnicity, according to the American Red Cross. A ...

www.infoplease.com/math-science/biology/human-body/blood-types

Individuals with Type AB+ blood are considered the universal recipients because people with that type can receive any blood type. Blood Type Chart: Below is a chart listing blood types, the percentage of Americans with that type, and the types they can donate to.

www.redcrossblood.org/donate-blood/blood-types.html?icid=rdrt-blood-types&imed=...

There are four major blood groups determined by the presence or absence of two antigens – A and B – on the surface of red blood cells. In addition to the A and B antigens, there is a protein called the Rh factor, which can be either present (+) or absent (–), creating the 8 most common blood types (A+, A-, B+, B-, O+, O-, AB+, AB-).

knowyourblood.com/all-about-the-rarest-blood-types

Don’t pay attention to the subject of what blood type is rare in all actuality all blood types are rare to a point. this list just lets the viewer see how rare their blood is compared to other people. Whats more important is who you can get blood from that makes you stand out. O+ can only receive from their own type or O-

www.reference.com/science/eight-blood-types-6d403eb84e40e7ae

The eight blood types are A, B, AB and O, each of which can occur as a positive or negative type. The most common blood type is O positive, while the rarest blood type is AB negative. Individuals with the blood type AB positive are universal receivers, meaning their immune system can accept any blood donation.

www.healthtap.com/topics/list-of-blood-types-by-rarity

Doctors give unbiased, helpful information on indications, contra-indications, benefits, and complications: Dr. Ho on list of blood types by rarity: Antiphospholipid syndrome autoimmune addison’s disease autoimmune hemolytic anemia autoimmune hepatitis autoimmune inner ear disease autoimmune lymphoproliferative syndrome (alps) autoimmune thrombocytopenic purpura (atp) behcet’s disease ...

kidshealth.org/en/teens/blood-types.html

Blood might look the same and do the same job, but tiny cell markers mean one person's body can reject another person's blood. Find out how blood types work in this article for teens.

answers.yahoo.com/question/index?qid=20080207185245AAzmKqS

Best Answer: As well as the A-B-O and Rh types listed by everyone, there are some other really rare groups where people don't group for A-B-O or Rh at all (Bombay and Rh null respectively). There is also another large list of antigen systems that you can group people for on their red cells (Kell, Duffy ...