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According to the rule of dominance if two different alleles are present is the dominant allele expressed?
Wiki User
∙ 14y ago
the dominant allele is expressed when two (assuming you mean dominant and recessive) alleles are present.
however, if the alleles are codominant they are both expressed.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoThe dominant alleles are the ones that appear as capital letters and always show if they are there (R). Heterozygous is when there is a dominant and a recessive allele (Rr).
Wiki User
∙ 12y agoBoth unless it is codominance like in roan cattle that have a white and red dominant allele and turn on a reddish white.
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What is a trait expressed when two different genes for the same trait present?
When two different genes for the same trait are present, the trait is said to exhibit codominance or incomplete dominance. In codominance, both alleles are fully expressed, resulting in a phenotype that shows a combination of both traits. In incomplete dominance, neither allele is dominant, leading to a blending of the two traits in the phenotype.
Principle states that one factor in a pair may prevent the other factor in the pair from being expressed?
This principle is called the principle of dominance. It explains that in a pair of alleles, the dominant allele will be expressed over the recessive allele. So, the dominant factor will prevent the recessive factor from being expressed in the phenotype.
Allele that is always expressed if present?
An allele that is always expressed when it is present is the dominant allele.
What kind of trait is expressed when two different genes from the same trait are present?
It depends on the gene in question, and the type of dominance of the trait.For monogenetic traits (those controlled by a single gene), the dominant trait(s) will be expressed when two different alleles are present.For example, if B leads to black fur and b leads to white fur:Complete dominance would result in a rabbit with Bb having black fur.Incomplete dominance - Bb would result in grey furCodominance - Bb would result in black and white patches/spots/etc.
What Dominant alleles are both fully expressed in a phenotype?
The form of inheritance in which two (different) alleles are both expressed is called codominance. An example of codominance is the orange and black coat of a type of calico cat called a tortoiseshell. Both the orange allele and the black allele for coat color are expressed.
What is the term for dominance in which the dominant allele is always expressed?
Complete dominance
At is a gene with two dominant alleles that are expressed at the same time?
In genetics, gene with two dominant alleles that are expressed at the same time is known as codominance. This results in a phenotype where both alleles are equally and fully expressed in the offspring. An example of codominance is the AB blood type in humans, where the A and B alleles are both expressed on the surfaces of red blood cells.
What is shared dominance?
Shared dominance occurs when two or more individuals have similar levels of authority or power within a group or relationship. This can lead to a more collaborative and equal distribution of control compared to a more hierarchical dominance structure.
What term describes a gene with two dominant alleles that are expressed at the same time?
Co-dominance.
What Allele expressed in homozygote?
A heterozygous individual has two different alleles. Depending on the type of dominance for the particular gene there are several different outcomes: If one allele is completely dominant over the other then this will be expressed. If they are codominant, then both will be expressed. The human blood type AB is an example of this - both A and B are expressed, neither is repressed by the other. Another possibility is incomplete dominance - where the phenotype (characteristic) is a mix of both (a trait in-between). For example a snap-dragon with red and white alleles will be pink.
Allele that is always expressed if present?
An allele that is always expressed when it is present is the dominant allele.
What is a trait expressed when two different genes for the same trait present?
When two different genes for the same trait are present, the trait is said to exhibit codominance or incomplete dominance. In codominance, both alleles are fully expressed, resulting in a phenotype that shows a combination of both traits. In incomplete dominance, neither allele is dominant, leading to a blending of the two traits in the phenotype.
Why you called co-dominance when a person possess two different alleles at the same locus and both alleles are expressed in the phenotype?
Both of the parent's alleles are either dominant or recessive.
True or False In heterozygous individuals only the recessive allele is expressed?
False. In heterozygous individuals, both the dominant and recessive alleles are present, but only the dominant allele determines the phenotype while the recessive allele remains masked.
What is the condition in which two different alleles are expressed equally when inherited?
Codominance is the condition in which two different alleles for a gene are both expressed and neither is dominant or recessive. This results in a phenotype that shows a mixture of the traits from both alleles.
Chromosome that has both dominant and recessive gene?
A chromosome can have both dominant and recessive genes for a specific trait, but only one gene will be expressed in an individual. The dominant gene will be expressed over the recessive gene in a heterozygous individual. This is known as the principle of dominance in genetics.
What kind of trait is expressed when two different genes from the same trait are present?
It depends on the gene in question, and the type of dominance of the trait.For monogenetic traits (those controlled by a single gene), the dominant trait(s) will be expressed when two different alleles are present.For example, if B leads to black fur and b leads to white fur:Complete dominance would result in a rabbit with Bb having black fur.Incomplete dominance - Bb would result in grey furCodominance - Bb would result in black and white patches/spots/etc.
