What is an allele?(1 point)

Responses

a non-inherited trait
a non-inherited trait

a variant form of a gene
a variant form of a gene

a trait that can be masked
a trait that can be masked

a trait that appears in an offspring if one of the parents contributes it

a trait that appears in an offspring if one of the parents contributes it

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.

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.
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.

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

No, dominant traits are not necessarily the most common traits. Dominance refers to how a trait is expressed in an individual, not its frequency in the population. In fact, dominant traits can sometimes be less common in a population compared to recessive traits. The frequency of a trait in a population is influenced by many factors, including genetic drift, mutation, and natural selection.