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What is the condition in which the dominant allele is unable to express itself fully?
Wiki User
∙ 14y ago
Co-dominance or incomplete/semi-dominance.
Co-dominance is a mix between the two traits, for example (simplified), in roses, white crossed with red make pink. This makes 3 distinct variations.
Semi-dominance is a little more complicated as multiple variations may occur but they can all closely resemble eachother, but with minor variences. Generally, a heterozygous trait will have traits similar to the two different types of homozygous trait (i.e. (simplified) AA, Aa, and aA will all look slightly different, but AA contains traits of both Aa and aA). For example, tonkinese cats, show various semi-dominant types.
Wiki User
∙ 14y ago
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What is a dominent allele?
A dominant allele is an allele that can take over a recessive allele, so if you have a dominant allele and a recessive allele, then the offspring will most likely have a dominant allele over a recessive allele. The dominant allele is expressed over the recessive allele.
Capacity of one allele to suppress the expression?
A dominant allele will express itself if present, and will suppress the recessive allele's expression.
How is a recessive alle different from a dominant allele?
its different because adominant allele is in charge
What is am example of a dominant allele?
A dominant allele is the allele which expresses itself morphologically.for example;the dimple on your cheek.your mom has a dimple whereas your father doesn't have it .but you too possess it.then ,your mother's allele serves to be the dominant allele.
How does hemophilia progress?
Hemophilia is a recessive allele condition. Men can get hemophilia alot easier than women as the allele is found on the XY Chomosome pair. With men. they do not have the extra "tail" on the Y chromosome compared to the XX with a female. If the person has the recessive allele on the X chromosome and this person is male, they will be a hemophiliac as they do not have a 'pair' allele which could be dominant to stop the condition expressing itself. On a female, if there is a recessive (hemophilia) allele on one of the X chromosomes but on the other is a Dominant (normal) allele then she will be a carrier of the faulty gene but will not suffer from the condition herself. If the female have a recessive (faulty) gene on each of the XX chromosomes, then she will be a sufferer of the disease.
What is a dominent allele?
A dominant allele is an allele that can take over a recessive allele, so if you have a dominant allele and a recessive allele, then the offspring will most likely have a dominant allele over a recessive allele. The dominant allele is expressed over the recessive allele.
Capacity of one allele to suppress the expression?
A dominant allele will express itself if present, and will suppress the recessive allele's expression.
How is a recessive alle different from a dominant allele?
its different because adominant allele is in charge
Why is it that a person with an allele for a particular trait may not have a phenotype that shows the trait?
a dominant allele will express its trait , as well as be carried by the person. the word carrier is commonly used for a person who bears an allele which does not express itself(i.e. a recessive gene).
What is am example of a dominant allele?
A dominant allele is the allele which expresses itself morphologically.for example;the dimple on your cheek.your mom has a dimple whereas your father doesn't have it .but you too possess it.then ,your mother's allele serves to be the dominant allele.
What is dominant and recessive allele?
A dominant allele is an allele where its phenotype will always be represented when the allele for that gene is present. A recessive allele can be masked by a dominant allele when a dominant and recessive allele are present for the same gene. A recessive allele will only present itself when two recessive alleles for a trait are present.
How does hemophilia progress?
Hemophilia is a recessive allele condition. Men can get hemophilia alot easier than women as the allele is found on the XY Chomosome pair. With men. they do not have the extra "tail" on the Y chromosome compared to the XX with a female. If the person has the recessive allele on the X chromosome and this person is male, they will be a hemophiliac as they do not have a 'pair' allele which could be dominant to stop the condition expressing itself. On a female, if there is a recessive (hemophilia) allele on one of the X chromosomes but on the other is a Dominant (normal) allele then she will be a carrier of the faulty gene but will not suffer from the condition herself. If the female have a recessive (faulty) gene on each of the XX chromosomes, then she will be a sufferer of the disease.
What is caused by a dominant allele that expresses itself late in a persons life?
Huntingtons Disease
What is an allele that expresses itself in a hybrid?
A hybrid is formed for example when a homozygous dominant (AA) individual is crossed with homozygous recessive (aa) individual. all the individuals which are produced in F1 generation are hybrids (Aa) in case of a hybrid only dominant allele is expressed, while the recessive allele remains suppressed due to dominant recessive relationship.
How do you know if a gene is dominant or recessive?
A dominant allele expresses itself in every offspring in every generation. A dominant allele expresses itself irrespective of the other allele present along with it. A recessive allele, however is masked by the presence of dominant allele. It can express itself only if the other gene in the allele pair is also recessive. As a result, it is not expressed phenotypically in every generation.
How do dominant lethal alleles persist in populations even though their fitness is essentially zero?
Huntington's disease, where the lethal allele expresses itself very late in an individuals life. Persons carrying the dominant lethal allele does not become aware of the disease until after their reproductive age. Thus, they pass the lethal allele to their children without knowing and the allele persists.
How are two traits that have Dominant and Recessive alleles inherited?
The trait received is recessive.
