Question

A student claims that dominant traits are always the most common traits. Is this true? Why or why not?(1 point)
Responses

No, dominant traits only show up if they are inherited; how common they are is not influenced by this.
No, dominant traits only show up if they are inherited; how common they are is not influenced by this.

Yes, dominant traits are called dominant because they are the most common.
Yes, dominant traits are called dominant because they are the most common.

Yes, dominant traits became more common over time as they are passed down from generation to generation; recessive alleles continue to become less common over time.

Answer 1

No, dominant traits can be less common than recessive traits. Dominance refers to the expression of a trait when there is a heterozygous genotype, but it does not necessarily mean that it is more common in a population. The frequency of a trait in a population is influenced by a variety of factors such as mutation rates, selective pressures, and genetic drift. Dominant traits can be less common if they have lower fitness or if they have only recently arisen in a population.