BioMed Research International / 2014 / Article / Tab 5

Research Article

Allele Frequency of ABO Blood Group Antigen and the Risk of Esophageal Cancer

Table 5

Hardy-Weinberg model for ABO blood group.

Phenotype (blood group) Genotype Phenotypic frequency Genotypic frequencyExpected frequency

AAA + AO A AA + AO + 2pr
BBB + BO B BB + BO + 2qr
ABAB AB AB2pq
OOO O OO

Hardy-Weinberg equation for ABO blood group is as follows:
+ + = 1,
+ + + 2pq + 2pr + 2qr = 1.