Dominant trait meaning

A dominant trait is a specific characteristic that is expressed when an individual possesses at least one copy of the corresponding gene.


Dominant trait definitions

Word backwards tnanimod tiart
Part of speech Noun
Syllabic division dom-i-nant trait.
Plural The plural of dominant trait is dominant traits.
Total letters 13
Vogais (3) o,i,a
Consonants (5) d,m,n,t,r

Dominant traits are characteristics that are expressed when an individual possesses only one copy of a particular gene. These traits mask recessive traits when an individual inherits one dominant allele and one recessive allele for a specific gene.

Understanding Dominant Traits

Dominant traits are those that are more likely to be expressed in an individual's phenotype. This means that if a person carries a dominant allele for a certain trait, it will be visible in their physical appearance or behavior. Dominant traits can be observed in various aspects, such as eye color, hair texture, or the ability to roll one's tongue.

Genetics of Dominant Traits

In genetics, dominant traits are represented by a capital letter (e.g., "A"), while recessive traits are represented by a lowercase letter (e.g., "a"). When an individual carries two dominant alleles (AA) or one dominant and one recessive allele (Aa), the dominant trait will be expressed. Only in the case of two recessive alleles (aa) will the recessive trait be observed.

Examples of Dominant Traits

Some common examples of dominant traits in humans include brown eyes, dark hair, and attached earlobes. These traits are prevalent in populations because they are dominant and more likely to be passed down from parents to offspring.

Dominant traits play a significant role in genetic inheritance, shaping the physical characteristics and traits observed in individuals. Understanding the principles of dominant and recessive traits is crucial in comprehending the transmission of traits from one generation to the next.

Overall, dominant traits exert a noticeable influence on an individual's phenotype, dictating which traits will be expressed based on their genetic makeup. By studying dominant traits, researchers and scientists gain valuable insights into the complexities of genetic inheritance and variability in different populations. Genetic studies continue to shed light on the intricate mechanisms that govern the expression of dominant traits and their inheritance patterns.


Dominant trait Examples

  1. In her family, having blue eyes is a dominant trait that is passed down from generation to generation.
  2. The ability to roll one's tongue is considered a dominant trait in genetics.
  3. Being able to taste certain flavors, like bitterness, is a dominant trait for some individuals.
  4. Having attached earlobes is a dominant trait in some populations.
  5. The presence of a widow's peak hairline is a dominant trait in her family.
  6. Having dimples when smiling is a dominant trait that runs in his family.
  7. Being able to taste the compound PTC is a dominant genetic trait.
  8. The ability to rapidly metabolize caffeine is a dominant trait in his family.
  9. Having a cleft chin is a dominant trait in some populations.
  10. Being able to wiggle one's ears independently is a dominant genetic trait.


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  • Updated 15/05/2024 - 22:59:36