No, it is not true that dominant traits are always the most common traits. Dominant traits refer to those traits that are expressed or observable in an individual's phenotype, whereas recessive traits are only expressed if an individual inherits two copies of the recessive allele.
The occurrence of traits in a population is not solely determined by whether they are dominant or recessive. The frequency of a trait in a population depends on various factors such as the overall genetic variation, selective pressures, and the inheritance patterns of specific traits.
For example, some traits may be dominant but relatively rare in a population due to the presence of strong selective pressures against those traits. On the other hand, some recessive traits can become common if they offer a selective advantage under certain conditions or if the population has a higher frequency of carriers (individuals with one copy of the recessive allele).
Therefore, while dominant traits can be common in certain cases, it is not a general rule that they are always the most common traits in a population. The frequency of traits is influenced by multiple complex factors in genetics and natural selection.
a student claims that dominant traits are always the most common traits. is this true? why or why not
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