Is multiple alleles the same as Codominance?

The key difference between codominance and multiple alleles is that codominance is expressing the effects of both alleles independently, without blending in the heterozygous state, while multiple alleles refer to the state of a trait that has more than two different alleles.

Is multiple alleles part of codominance?

Whenever a given trait has three or more different alleles, we say that the trait has multiple alleles. … These three alleles that constitute the ABO blood group trait observe a pattern of inheritance called codominance (co-dominance).

What is another name for multiple alleles?

Multiple Allelism, Pleiotropy and Epistasis

Pleiotropy refers to the condition wherein more than one gene can have multiple effects on the phenotype. While multiple allelism involves only a single gene with many variants (referred to as multiple alleles), pleiotropy entails more than one gene that determines phenotype.

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What is an example of codominance and multiple alleles?

Heterozygotes—those with both alleles—carry both antigens. An example of codominance for a gene with multiple alleles is seen in the human ABO blood group system. Persons with type AB blood have one allele for A and one for B; the O allele is recessive (its expression is masked by the other alleles).

What are the alleles in codominance?

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. So if an individual inherits allele A from their mother and allele B from their father, they have blood type AB.

Is codominance and incomplete dominance the same?

Incomplete dominance is when the phenotypes of the two parents blend together to create a new phenotype for their offspring. An example is a white flower and a red flower producing pink flowers. Codominance is when the two parent phenotypes are expressed together in the offspring.

What does multiple allele mean?

Definition of multiple allele

: an allele of a genetic locus having more than two allelic forms within a population.

What are multiple alleles give any two examples of multiple alleles?

Examples of Multiple Alleles

Two human examples of multiple-allele genes are the gene of the ABO blood group system, and the human-leukocyte-associated antigen (HLA) genes.

Which of the following is an example of multiple allele?

The best characterized example of multiple alleles in humans is the ABO blood groups, discussed in the Non-Mendelian Inheritance concept. Other human traits determined by multiple alleles would be hair color, hair texture, eye color, built, physical structures, etc.

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What is multiple alleles explain with example?

Multiple alleles refer to the occurrence of three or more than three alleles for a particular gene. Alleles are different or contrasting forms of a gene. For example, for the gene encoding for height, one allele can be for tallness, whereas the other can be for dwarfness.

How do you know if a trait has multiple alleles?

Traits controlled by a single gene with more than two alleles are called multiple allele traits. An example is ABO blood type. Your blood type refers to which of certain proteins called antigens are found on your red blood cells.

Multiple Allele Traits.

Genotype Phenotype (blood type)
ii O

What is codominance give an example class 12?

The best example of codominance is ABO blood group. ABO blood grouping is controlled by gene I which has three alleles A, B, and O and show codominance. An O allele is recessive to both A and B. The A and B alleles are codominant with each other. When a person has both A and B, they have type AB blood.

Which of the following is not an example of codominance?

D. A flower offspring of red and white flowers, which has both red and white petals. C is correct. This is not an example of codominance, because the child does not express both parents’ traits.

What is the difference between dominance and codominance?

In complete dominance, only one allele in the genotype is seen in the phenotype. In codominance, both alleles in the genotype are seen in the phenotype.

Which of the following is an classical example of codominance?

The AB heterozygote at the classical blood type locus (the ABO locus) expresses both the A and B blood type antigens and has been considered as a classical case of codominance. Another example of codominance is the beta-thalassemia minor involving a mutant hemoglobin β-chain.

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How is codominance expressed in an organism?

Codominance is a form of inheritance wherein the alleles of a gene pair in a heterozygote are fully expressed. As a result, the phenotype of the offspring is a combination of the phenotype of the parents. Thus, the trait is neither dominant nor recessive.