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both the alleles are expressed when the alleles are co-dominent, which means neither is dominant or recessive and cannot be masked. SOme examples are blood type. Type AB blood type is one co-dominent allele for a (Ia) and one for b (Ib).

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13y ago
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12y ago

This is codominance, and in humans it can be seen in blood types. Type A and type B genes are codominant, so both are expressed if present, and the person is type AB. Type O is recessive to both A and B genes.

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11y ago

When both alleles for a gene are expressed in an individual, this is codominance.

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11y ago

Tanong mo sa pagong! ;) joke di ko ito masasagot eh sorry po. :)

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14y ago

This is called Codominance because both genes are expressed

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10y ago

codominance

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12y ago

Codominance

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10y ago

Heredity

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Q: What is a condition in which both alleles for a gene are fully expressed?
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When the alleles of a gene pair are expressed differently but neither is dominant to the other?

Codominance means that neither allele can mask the expression of the other allele. An example in humans would be the ABO blood group, where alleles A and alleles B are both expressed.


What is the type of allele that only effect the phenotype in the homozygous chromosome?

Recessive. Dominant alleles are expressed in both homozygous and heterozygous individuals (DD or Dd), but recessive alleles are only expressed in homozygous individuals (dd).


What is the difference between dominant and recessive alleles for specific traits?

Dominant is an allele that will always be expressed in a heterozygous individual. Recessive on other hand are traits that will only be expressed in a homozygous condition. Organisms receive one allele for each trait from each parent, thus you have two alleles for each trait.


Genetic trait that is expressed when it's allele is homozygous or heterozygous?

The complete expression of both alleles (i.e. for example, a black and white cow), is known as co-dominance, when each allele is equally dominant over the other. However, both alleles may be expressed in the form of an intermediate as well (i.e. white and red alleles forming a pink intermediate for flower petals), known as incomplete dominance, when neither allele is completely dominant over the other.


When both dominant and recessive alleles are present within a single nucleus the organism is for the trait?

You are supposed to have 2 alleles in a single nucleus and if not there can be a disorder i believe.

Related questions

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.


When the heterozygous genotype results in a phenotype where both alleles are fully and separated expressed?

codominance.


What type of allele dominance occurs when both the alleles are active and expressed?

When both the alleles are expressed, it is called co-dominance or mixed dominance.


Is this true or false in codominance the alleles are neither dominant nor recessive?

True - in codominance neither allele is dominant or recessive. Codominance results in both alleles being expressed in the phenotype (characteristics of the organism). For example, if R is red and W is white - a flower with the genotype RW would have white petals with red patches (or something similar).


When neither allele is dominant (they are both expressed)?

Both of the alleles must be recessive. The trait expressed is a recessive trait.


How does codominance effect phenotype?

both alleles are expressed in the offsping


What is it called when both alleles are expressed in an offspring?

This is called Codominance because both genes are expressed in an offspring.


When the alleles of a gene pair are expressed differently but neither is dominant to the other?

Codominance means that neither allele can mask the expression of the other allele. An example in humans would be the ABO blood group, where alleles A and alleles B are both expressed.


An allele that is not expressed in the heterozygous condition is?

If it's not a heterozygous, the alleles would either be two capital letters (TT) or two lowercase letters (tt). This is because the organism has either both two dominant alleles or two recessive alleles.


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.


When both alleles are expressed in offspring is what?

Co-dominance.


When neither allele is dominant what are they expressed as?

Both of the alleles must be recessive. The trait expressed is a recessive trait.