There are two cases where this can happen:
Case 1: Codominance: Both alleles are equally present but are distinct. a good example of this is when you breed a white cow with a red cow. both white and red are dominant. when you look at the offspring, it is roan; it has both white and red hairs mixed in with each other.
Case 2: incomplete dominance: Both alleles are equally present but are not distinct. a good example of this is is when you mix a white flower and a red flower and you get a pink flower
The recessive allele.
When an allele is neither dominant nor recessive, it means that both alleles equally influence the trait. This is known as codominance, where both alleles are expressed in the phenotype of the individual.
An allele that is dominated or covered up by another allele is called a recessive allele. This means that the trait associated with the recessive allele is only expressed when an individual carries two copies of that allele.
A dominant allele is called dominant because it expresses its trait even when only one copy is present in an individual's genotype. This means that if an individual has one dominant allele and one recessive allele for a particular gene, the dominant trait will be observed in the phenotype. This characteristic allows dominant alleles to mask the effects of recessive alleles, leading to the trait associated with the dominant allele being the one that is visibly expressed.
Codominance. It's the case of AB blood types, for instance. Neither trait is dominant over the other, so both manifest.
The recessive allele.
An allele that produces a trait in the heterozygous condition is called dominant. This means that only one copy of the allele is needed to express the trait.
When an allele is neither dominant nor recessive, it means that both alleles equally influence the trait. This is known as codominance, where both alleles are expressed in the phenotype of the individual.
Both of the alleles must be recessive. The trait expressed is a recessive trait.
Such a trait is called a recessive trait.
Both of the alleles must be recessive. The trait expressed is a recessive trait.
An allele that is dominated or covered up by another allele is called a recessive allele. This means that the trait associated with the recessive allele is only expressed when an individual carries two copies of that allele.
A dominant allele is called dominant because it expresses its trait even when only one copy is present in an individual's genotype. This means that if an individual has one dominant allele and one recessive allele for a particular gene, the dominant trait will be observed in the phenotype. This characteristic allows dominant alleles to mask the effects of recessive alleles, leading to the trait associated with the dominant allele being the one that is visibly expressed.
Codominance. It's the case of AB blood types, for instance. Neither trait is dominant over the other, so both manifest.
When an allele creates a visible trait, it is called a dominant allele. Dominant alleles mask the expression of recessive alleles when present in a heterozygous individual.
because it dominates the phenotype
The dominant allele is the trait that shows up in the organism when the allele is present