Figure 1.

- Dombrock (DO) genotyping results for the c.793A>G (rs11276) single nucleotide polymorphism in blood donors from the Western region of Saudi Arabia. A) Majority of the blood donors have DO^*02 (DO^*B) allele at approximately 56.8%, whereas the remaining blood donors have DO^*01 (DO^*A) allele at approximately 43.2%, B) genotyping for the c.793A>G also demonstrated that half of the blood donors from Western Saudi Arabia were heterozygous for the DO blood group (DO^*01/02), whereas the homozygous genotype DO^*02/02 was present at a frequency of 31.8% and DO^*01/01 was present at a frequency of 18.2%