Which description is an example of Codominance?

Asked By: Wenliang Usle | Last Updated: 2nd March, 2020
Category: science genetics
4.5/5 (56 Views . 29 Votes)
Examples of codominance include a person with type AB blood, which means that both the A allele and the B allele are equally expressed. Another example is roan fur in cattle, in which white and red hair is equally expressed.

Click to see full answer


Regarding this, what is the Codominance?

Codominance occurs when two versions, or “alleles,” of the same gene are present in a living thing, and both are expressed. Instead of one trait being dominant over the other, both traits appear. The A and B alleles for blood type can both be expressed at the same time, resulting in type AB blood.

Secondly, is Heterochromia an example of Codominance? But having two different colored eyes is not one of them. This heterochromia happens for different reasons (click here to learn more). You are right that codominance happens when two traits are both visible at the same time. The classic example that we'll go over in more detail is the AB blood type.

Considering this, which of the following human traits is an example of Codominance?

Codominance occurs when both alleles in a genotype are expressed equally. Cystic fibrosis is caused by the inheritance of a single dominant lethal allele. false. Human height, eye color, and hair color are examples of traits determined by polygenic inheritance.

What is another word for Codominance?

codlins-and-cream, codó, codogno, codology, codomain, codominant, codon, codon devices, codon, initiator, codon, nonsense.

29 Related Question Answers Found

How does Codominance occur?

Codominance occurs when two heterozygous alleles are fully expressed in the phenotype of an organism. The distinct phenotypes produced by each allele are expressed.

What are some examples of codominant traits?

Examples of Codominance:
  • AB Blood Type. People with this blood type have A and B proteins at the same time.
  • Sickle-Cell Anemia. Sickle cell anemia is a disease where red blood cells become thin and stretched out.
  • Horse color. The roan coat color of a horse is due to codominance.
  • Flower colors.

What is codominant inheritance?

Codominant inheritance: Codominant means both alleles of a heterozygous gene pair both have full phenotypic expression. Codominance means that both alleles at a locus are expressed. Codomininance in X-linked genes is a special case that will be treated under sex-linked inheritance.

How do you know which allele is dominant?

When a trait is dominant, only one allele is required for the trait to be observed. A dominant allele will mask a recessive allele, if present. A dominant allele is denoted by a capital letter (A versus a). Since each parent provides one allele, the possible combinations are: AA, Aa, and aa.

When neither allele is dominant?


the situation in which two different alleles for a trait are expressed unblended in the phenotype of heterozygous individuals. Neither allele is dominant or recessive, so that both appear in the phenotype or influence it. Type AB blood is an example. Such traits are said to be codominant.

What is the difference between epistasis and dominance?

Epistasis occurs when one gene is able to mask the phenotype of another gene. Dominant epistasis is when only one allele of the gene that shows epistasis can mask alleles of the other gene. Recessive epistasis is where two alleles have to be inherited in order for the phenotype of the second gene to be masked.

Is skin color a codominant trait?

Polygenic Inheritance Key Takeaways
Polygenic inheritance is a type of incomplete dominance inheritance, where the expressed phenotypes are a mixture of inherited traits. Examples of polygenic traits include skin color, eye color, hair color, body shape, height, and weight.

What blood type is codominant?

The A and B alleles are codominant. Therefore, if an A is inherited from one parent and a B from the other, the phenotype will be AB. Agglutination tests will show that these individuals have the characteristics of both type A and type B blood.

What type of genetic trait is Rh factor?

The Rh factor genetic information is also inherited from our parents, but it is inherited independently of the ABO blood type alleles. There are 2 different alleles for the Rh factor known as Rh+ and Rh-. Someone who is "Rh positive" or "Rh+" has at least one Rh+ allele, but could have two.

Is ABO blood type Codominance?


The ABO blood type is inherited in an autosomal codominant fashion. The A and B alleles are codominant, and the O allele is recessive.

What are dominant traits are defined as?

Dominant Trait Definition. A dominant trait is an inherited characteristic that appears in an offspring if it is contributed from a parent through a dominant allele. Each of the alternative versions of a gene is called an allele.

Who discovered Codominance?

Incomplete & Codominance. Mr kousen is … Water Man. In many ways Gregor Mendel was quite lucky in discovering his genetic laws. He happened to use pea plants, which happened to have a number of easily observable traits that were determined by just two alleles.

Is blood type complete dominance?

… traits, however, alleles may be codominant—i.e., neither acts as dominant or recessive. An example is the human ABO blood group system; persons with type AB blood have one allele for A and one for B. (Persons with neither are type O.)

What is meant by multiple alleles?

multiple alleles Three or more alternative forms of a gene (alleles) that can occupy the same locus. However, only two of the alleles can be present in a single organism. For example, the ABO system of blood groups is controlled by three alleles, only two of which are present in an individual.

What is a pedigree?


A pedigree chart is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors from one generation to the next, most commonly humans, show dogs, and race horses.

Is Heterochromia recessive or dominant?

Heterochromia present at or shortly after a person's birth is usually hereditary, or due to intrauterine disease or injury. Congenital heterochromia might be familial and is inherited as an autosomal dominant trait. Inherited eye color is determined by a number of genes.

Is eye color an example of incomplete dominance?

Eye color is often cited as an example of incomplete dominance. In fact, it's a little more complicated than that, but hazel eyes are partially caused by incomplete dominance of multiple genes related to green and brown eye color.