A student claims that dominant traits are always the most common traits. Is this true? Why or why not?(1 point)
Responses
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.
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 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 in general tend to be less common in the population and continue to persist only because they are dominant over more common recessive alleles.
To understand why this is the case, we need to understand the basic principles of inheritance. Traits are determined by genes, which are located on chromosomes. Each individual inherits two copies of each gene, one from each parent.
Dominant traits are expressed when there is at least one dominant allele present. Recessive traits, on the other hand, are only expressed when there are two recessive alleles present.
Now, let's consider a hypothetical scenario where a dominant trait is more common than a recessive trait. In this case, individuals with at least one dominant allele would show the dominant trait, while individuals with two recessive alleles would show the recessive trait.
Since dominant traits are more common, individuals with at least one dominant allele would be more common in the population. However, individuals with two recessive alleles would be less common because it would require both parents to carry the recessive allele and pass it on to their offspring.
Therefore, dominant traits are not always the most common traits. They can be less common in the population but still persist because they have a dominant effect over recessive alleles.
In summary, the commonness of a trait is not solely determined by whether it is dominant or recessive. Other factors, such as the frequency of the alleles in the population and the mode of inheritance, also play a role in determining the prevalence of a trait.