No, this claim is not true. Dominant traits may not always be the most common traits. The frequency of a trait in a population depends on various factors such as the allele frequencies, selective pressures, and genetic drift. In some cases, recessive traits may be more common if they have a higher fitness advantage or if genetic drift increases their frequency within a population over time. Therefore, it is incorrect to assume that dominant traits are always the most common traits in a population.
