Genetic relationship between blood type and blood type is generally the same for life. Human blood is usually divided into A, B, O and AB four. Blood cells by means of genetic chromosomes. Human cells in a total of 23 pairs of chromosomes, each pair of chromosomes are formed by the two single chromosomes, one from the father and one from the mother. The main ingredient is to determine the chromosomal genetic traits and functions of DNA, often referred to DNA. DNA can be divided into many small pieces, each has a short specific genetic traits and functions of these small pieces known as genes. A pair of chromosomes in the same location on chromosome two single small fragment of DNA, known as alleles. ABO blood group system gene loci on chromosome 9. Person's ABO blood group is controlled by A, B, O three genes, but each human cells on chromosome 9 ABO system has only two genes, namely, AO, AA, BO, BB, AB, OO in a pair of alleles, A and B gene as a dominant gene, O gene is recessive gene. Inheritance of ABO blood group system, no variation in the gene may have a reference value, but can not alone determine the blood with blood relations. Strictly speaking, just one of many blood group locus on a genetic locus, which of course have a certain reference value. However, due to routine blood grouping are more primitive conditions that by the naked eye, of which there are highly error Moreover, blood represents only one locus, and DNA paternity testing easily a dozen, dozens of sites more, even more rigor and inadequate. ABO blood grouping principle is based on the presence or absence of red blood cell antigens A and / or B antigens, the blood is divided into A-, B-, AB-type and O-four. Can make use of red blood cell agglutination test, by being (serum test) anti-(cell experiments) stereotypes accurate identification of ABO blood group. The so-called positive stereotypes is a known anti-A and anti-B typing serum to determine whether the corresponding A on red blood cell antigens and / or B antigens, so-called anti-stereotypes is known to A and B cells to determine whether the corresponding serum anti-A or anti-B. Parent: A type + A-type, offspring may be: A-type, O-, offspring can not: B-, AB-type parent: B-+ A-type, offspring may be: A type, B-, AB-type, O type, offspring can not: no parental type: B + B-type, offspring may be: B-, O-, offspring can not: A-type, AB-type parent: one or both parties are type AB, the offspring may be: A type, B-, AB-type, offspring can not: O-type parent: A type + O type, offspring may be: A-type, O-, offspring can not: B-, AB-type parent: B-+ O-type , offspring may be: B-, O-, offspring can not: A-type, AB-type parental type: O + O-type, offspring may be: O-, offspring can not: A type, B-, AB-type comments : blood test whether a genetic relationship can not serve as the standard, only DNA paternity testing, to determine whether a genetic relationship is the gold standard

24 hours toll- free hotline: 400-6577-626
Hotline in Shanghai: 021-50899583 18916099613
English hotline:13391253863 15601691258
Email address: strdna@163.com