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 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.
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, it's important to have some basic knowledge of genetics. Traits, such as eye color or hair texture, are determined by genes. Each gene has two copies, known as alleles, which can be either dominant or recessive.
Dominant alleles are always expressed in the phenotype, meaning they are visible or observable. On the other hand, recessive alleles are only expressed when there are two copies of the recessive allele present.
For example, let's consider the trait for hair color, where the dominant allele is "B" for brown hair and the recessive allele is "b" for blonde hair. Individuals with genotype BB or Bb will have brown hair because the dominant allele is expressed. Only individuals with genotype bb will have blonde hair because the recessive allele is expressed.
Now, in a population, it is not necessary for the dominant allele to be the most common. In fact, recessive alleles tend to be more common since they can persist in a population even if they are not expressed as frequently in the phenotype. This is because individuals who carry the recessive allele but do not express it can still pass it on to their offspring, allowing it to be present in the population.
Therefore, it is incorrect to assume that dominant traits are always the most common traits. Dominant traits can be less common in the population and continue to persist through generations due to their dominance over recessive alleles.