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11 Examples of Dominant Traits

August 10, 2023
written by Sidra Batool

A dominant trait is a trait that is expressed in an individual even if only one copy of the gene for that trait is present.

Examples of Dominant Traits

Here are some Examples of Dominant Traits:

1.  Brown Eyes

In human eye color, the trait for brown eyes is dominant over the trait for blue eyes. If a person inherits one allele for brown eyes from either parent, they will have brown eyes.

2. Widow’s Peak Hairline

The presence of a widow’s peak, a downward V-shaped hairline on the forehead, is a dominant trait. Individuals with at least one dominant allele for widow’s peak will exhibit this characteristic.

3.  Attached Earlobes

The trait for attached earlobes, where the earlobe is directly connected to the side of the head, is dominant over the trait for free-hanging earlobes.

4. Rolling Tongue

The ability to roll the tongue into a tube shape is a dominant trait. Individuals with at least one dominant allele for tongue rolling can perform this action.

5. Cleft Chin

The presence of a cleft chin, a dimple or indentation in the middle of the chin, is a dominant trait. Individuals with at least one dominant allele for cleft chin will have this feature.

6.  Curly Hair       

The trait for curly hair is dominant over straight hair. Individuals with at least one dominant allele for curly hair will have curly hair.

7. Hitchhiker’s Thumb

The ability to bend the thumb joint backward at a sharp angle is a dominant trait. Individuals with at least one dominant allele for hitchhiker’s thumb will possess this trait.

8.  Taste Sensitivity

The ability to taste certain bitter compounds, like the one found in the chemical PTC, is a dominant trait. Individuals with at least one dominant allele for taste sensitivity will experience this taste.

9.  Dimples

The presence of dimples on the cheeks when smiling is a dominant trait. Individuals with at least one dominant allele for dimples will have dimples.

10.  Freckles          

The presence of freckles on the skin is often associated with a dominant trait. Individuals with at least one dominant allele for freckles will exhibit this characteristic.

11. Right-Handedness

Right-handedness is a dominant trait. This means that if an individual inherits one copy of the gene for right-handedness from either parent, they will be right-handed.

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