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That depends on the extent to which the allele is expressed. There are two cases. in the first case, if the phenotype ratio of one is greater than the other, that is, if one of them is expressed to a greater extent then the other, then it is known as incomplete dominance. However, if both are expressed in equal amounts in the offspring or there phenotype ratio is equal, then it is co-dominance.

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Q: When both alleles are expressed in an offspring what has occurred?
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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 both alleles are expressed in offspring is what?

Co-dominance.


When are both alleles expressed in offspring?

Incomplete Dominance


When both alleles are expressed in an offspring this is called?

It is called incomplete dominance.


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.


What is the name of inheritance pattern in which both alleles are expressed equally?

It depends on what you mean by "both are expressed". In order for both alleles to be expressed, both alleles must be dominant alleles. If one allele is recessive, it will be masked. If you are talking about alleles that are co-dominant, then both alleles would be expressed together. Ex: Red x white = red and white flower If you are talking about incomplete dominance, then both alleles are seen as a blend of both in the offspring. Ex: red x white = pink flower If you are talking about multiple alleles (like in human blood typing), then you can see 2 alleles expressed together. Ex: Type A x Type B can produce AB blood type.


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


In what both alleles are expressed in offspring?

Incomplete Dominance


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 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.


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.