Negative Blood: Anti-D antibodies are present in the serum of the negative blood. Positive Blood: Anti-D antibodies are absent in the serum of the positive blood. Negative Blood:Antigen D is absent on the surface of the red blood cells in the negative blood. Positive Blood: Antigen D is present on the surface of the red blood cells in the positive blood. Negative Blood: Negative blood is determined by the dd genotype. Positive Blood: Positive blood is determined by the DD and Dd genotypes. Negative Blood: Negative blood can only be found in 15% of the population. Positive Blood: Positive blood can be found in 85% of the population. Negative Blood: Negative blood is the type of blood in which the red blood cells do not contain the Rh factor on the surface. Positive Blood: Positive blood is the type of blood in which the red blood cells contain the Rh factor on the surface. The determination of both positive and negative blood is essential prior to blood transfusion and in mothers-to be.ĭifference Between Positive and Negative Blood Definition.The determination of both positive and negative blood is done by the RH blood group system.The Rh blood group is shown in figure 1.įigure 2: Symptoms of HTR Similarities Between Positive and Negative Blood
Therefore, the Rh factor is sometimes called the antigen D. The most significant Rh antigen is antigen D. Several significant Rh antigens include antigen D, C, E, c, and e. The numerous genetic rearrangements of those two genes produce different Rh antigens. The Rh antigen is a hybrid of Rh genes, RHD and RHCE. To date, 49 Rh antigens have been identified. The Rh factor is also called the Rh antigen. The term positive blood refers to the type of blood in which the red blood cells contains the Rh factor on the surface. Key Terms: Antigen D, Hemolytic Disease Of The Newborn (HDN), Hemolytic Transfusion Reactions (HTR), Negative Blood, Positive Blood, RH Blood Group, Rh Factor What is Positive Blood What is the Difference Between Positive and Negative Blood What are the Similarities Between Positive and Negative BloodĤ. The genotype dd is unable to produce the Rh factor on the surface of the red blood cell. The genotypes, DD and Dd, produce the Rh factor on the surface of the red blood cells. The allele D is the dominant allele and the allele d is the recessive allele. The two alleles that determine the RH blood group are the allele D and d. The main difference between Positive and negative blood is that positive blood consists of the Rh factor on the surface of the red blood cells whereas negative blood does not contain the Rh factor on the surface of the red blood cells. The antigen D is also called ‘Rhesus factor’ (Rh factor). The RH blood group classifies blood based on the presence or absence of the antigen D on the surface of the red blood cells. Positive and negative blood are the two types of blood classified by the RH blood group system. Main Difference – Positive vs Negative Blood