What is the approximate frequency of Group A individuals in the U.S. population?

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Multiple Choice

What is the approximate frequency of Group A individuals in the U.S. population?

Explanation:
Understanding ABO group frequencies in a population: Group A occurs from IAIA or IAi genotypes, so its prevalence depends on the allele frequencies of IA and i in the population. In the United States, with its mix of ethnic backgrounds, the observed distribution places Group A at roughly forty-one percent, with O around forty-five percent, B around ten percent, and AB a few percent. This makes approximately 41% the best estimate for the frequency of Group A in the U.S. population.

Understanding ABO group frequencies in a population: Group A occurs from IAIA or IAi genotypes, so its prevalence depends on the allele frequencies of IA and i in the population. In the United States, with its mix of ethnic backgrounds, the observed distribution places Group A at roughly forty-one percent, with O around forty-five percent, B around ten percent, and AB a few percent. This makes approximately 41% the best estimate for the frequency of Group A in the U.S. population.

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