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 in general tend to be less common in the population and continue to persist only because they are dominant over more common recessive alleles.
No, dominant traits in general tend to be less common in the population and continue to persist only because they are dominant over more common recessive alleles.
Yes, dominant traits are called dominant because they are the most common.
Yes, dominant traits are called dominant because they are the most common.
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 became more common over time as they are passed down from generation to generation; recessive alleles continue to become less common over time.
No, 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.
No, dominant traits in general tend to be less common in the population and continue to persist only because they are dominant over more common recessive alleles.
The correct answer is: No, dominant traits are not always the most common traits.
To understand why this is the case, we need to understand the basic principles of genetics. In genetics, traits are determined by genes, which are segments of DNA. Each individual inherits two copies of each gene, one from each parent.
Dominant traits are expressed when there is at least one copy of the dominant allele present. On the other hand, recessive traits are only expressed when an individual has two copies of the recessive allele.
The frequency of a trait in a population is determined by various factors, including mutation rates, selection pressures, and population genetics. Dominant traits are not necessarily more common simply because they are dominant. They may or may not be more common depending on these factors.
In fact, dominant traits can be less common in a population if they are associated with a disadvantage or if there is a selective pressure against them. On the other hand, recessive alleles can persist in a population even if they are less common because they can be hidden in individuals carrying only one copy of the allele.
Therefore, the claim that dominant traits are always the most common traits is not true. The frequency of a trait is determined by a combination of genetic and evolutionary factors, not simply by dominance or inheritance patterns.