Alelo dominante

The video explains the concept of dominant genes, using eye color as an example. It describes how a dominant allele, like brown eye color, can be expressed even if only one copy is present. The video further illustrates this with a scenario where a child inherits a brown allele from one parent and a blue allele from the other, resulting in brown eyes due to the dominance of the brown allele.

What is a dominant allele?

• A gene variant that is expressed even if only one copy is present

• A gene variant that is less common in a population

• A gene variant that is only expressed when two copies are present

• A gene variant that is never expressed

What determines if an allele is dominant?

• Its ability to be expressed only when two copies are present

• Its frequency in the population

• Its ability to change over time

• Its ability to be expressed with only one copy present

Which of the following is an example of a dominant allele?

• Brown eye color

• Green eye color

• Blue eye color

• Hazel eye color

In the context of eye color, which allele is considered dominant?

• Hazel

• Green

• Brown

• Blue

If a child inherits a brown allele from one parent and a blue allele from the other, what will be the child's eye color?

• Blue

• Green

• Brown

• Hazel