What is the frequency of the O antigen phenotype in the population?

The O antigen phenotype, which corresponds to the ABO blood group system, represents a significant portion of the global population. The frequency of individuals with the O blood type can vary by geographic region and ethnicity, but on a broad scale, it typically falls within the range of approximately 40% to 50% in many populations.

Selecting the frequency of 46.6% aligns closely with these demographic patterns observed in studies of blood group distributions. This percentage is commonly reported in various scientific literature when discussing the prevalence of O blood type. It reflects the large proportion of individuals who possess the O antigen phenotype, indicating its high prevalence in the overall population compared to other blood types. The other options represent frequencies that are either lower than the commonly accepted data or outside the typical range seen in major population studies, making them less representative of the population frequency of the O antigen phenotype.