if a person has type b blood what antigens and antibodies are present?
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Antigens (on the surface of the red blood cells): Rh+ indicates there are Rh antigens. Antibodies (in the blood plasma): B antibodies. If there are A and Rh antigens but no B antigens, the antibodies in the blood plasma are B antibodies.
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Blood group O has no antigens, but has both anti-A and anti-B antibodies in the plasma, as well as some special “anti-A,B” antibodies.
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The ABO System The presence or absence of A or B antigens gives us four main blood types: A type blood has only A antigens on red blood cells. B type blood has only B antigens on red blood cells. AB has both A and B antigens on red blood cells.
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Like A, B and O, the positive or negative component of a person's blood type refers to a molecule which is either present or absent on the surface of their red blood cells. In this case, it's an antigen in a blood group system called the Rh (originally called Rhesus) system.
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The Rh blood group consists of several antigens - Rh(D), or D being the most important. O negative red blood cells lack the A and B antigens (hence, group O) and also the Rh(D) antigen. Rh null blood lacks all the antigens in the Rh group, such as D, C, c, E, e and others.
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If someone has blood type A, they must have at least one copy of the A allele, but they could have two copies. Their genotype is either AA or AO. Similarly, someone who is blood type B could have a genotype of either BB or BO. A blood test of either type AB or type O is more informative.
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Two parents with B blood type can produce a child with either B or O blood type. One parent with A and another with B can produce a child with A, B, AB or O blood types. If one parent has A and another has AB, they can either produce a child with A, B or AB blood types.
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Individuals with type AB blood have both A and B antigens, whereas people with type O blood have no antigens present (there is no antigen O).
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Plasma contains anti-A and anti-B antibodies depending upon the blood group. Our body also has antibodies to A and/or B antigens according to our blood group. Patients should only receive plasma that does not contain an antibody which could attack the antigens present on their own red cells.
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A type blood has only A antigens on red blood cells. B type blood has only B antigens on red blood cells. AB has both A and B antigens on red blood cells. O has neither A nor B antigens on red blood cells.
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Blood group B has B antigens with anti-A antibodies in the plasma. Blood group A has A antigens on the red blood cells with anti-B antibodies in the plasma. This combination of antigens and antibodies determine which blood type you can be safely given for medical purposes.
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Blood group O has no antigens, but has both anti-A and anti-B antibodies in the plasma, as well as some special “anti-A,B” antibodies. Blood group AB has both A and B antigens, but no antibodies. ... Blood group A has A antigens on the red blood cells with anti-B antibodies in the plasma.
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The following blood types are compatible: Donors with blood type A… can donate to recipients with blood types A and AB. Donors with blood type B… can donate to recipients with blood types B and AB. Donors with blood type AB… can donate to recipients with blood type AB only.
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Blood group O (or blood group zero in some countries) individuals do not have either A or B antigens on the surface of their RBCs, and their blood serum contains IgM anti-A and anti-B antibodies.
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In blood typing, antigens on the surfaces of red blood cells (RBCs) are also known as agglutinogens and the antibodies that react against them are also called agglutinins. Antibodies in the blood are found in the plasma.
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The four main blood groups A, B, AB, and O are controlled by three alleles: A, B, and O. As humans are diploid, only two of these can be present in any one genotype. In other words, only two of these alleles are present at the same time in a person's cell.
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People with blood type O are considered to be universal donors. That is, they can donate blood to all other blood types. Why is this true? Blood type O does not have any A or B antigens and does have both A and B antibodies.