answersLogoWhite

0


Best Answer

Co-dominant alleles are both expressed, because both are translated into RNA. One of the best examples of co-dominance is human A/B blood type. The thing that differentiates A and B blood types is the antigens found on the surface of the blood cells. A person with two alleles for A-type antigens will have only A-type antigens, and a person with two B-type alleles will have only B-type antigens. However, a person with one A-type allele and one B-type allele will have blood type AB. A third allele, O-type, has no antigens on the surface of blood cells, and so is only "expressed" in the phenotype if a person has two O-type alleles (and therefore no antigens on their blood cells.)

User Avatar

Wiki User

14y ago
This answer is:
User Avatar
More answers
User Avatar

AnswerBot

3w ago

Co-dominant alleles are two different versions of a gene that are both expressed in the phenotype when present together. Neither allele is dominant over the other, so they both contribute to the observed trait or feature. This results in a phenotype that shows characteristics of both alleles.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do co-dominant alleles work?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Blood type in humans is controlled by which alleles?

Human blood type is determined by codominant alleles.


Do codominant alleles assort independently?

Yes, codominant alleles assort independently during Mendelian inheritance. This means that the inheritance of one pair of alleles does not influence the inheritance of another pair of alleles on different chromosomes. Each allele segregates independently into gametes during meiosis.


Is tay-sachs caused by codominant alleles?

No, autosomal recessive


Inheritance pattern of phenylketonuria and tay-sachs disease?

codominant alleles


How many different phenotypes can be produced by a pair codominant alleles?

2


How to write the genotype of an animal that exhibits codominant black and white alleles?

Rainforest food


A person with the alleles ii has what blood type?

Which statement describes the blood type of a person with the alleles IAi? It is type AB because I and i are codominant. It is type AB because A and i are codominant. It is type A because i is dominant and A is recessive. It is type A because A is dominant and i is recessive.


A red dragon is with a white dragon they have a baby and its a pink dragon What is thins an emxample of?

:) codominant alleles


Which are differences between dominant and codominant marker?

Dominant markers show only the dominant allele and mask the recessive allele, while codominant markers show both alleles separately. With dominant markers, heterozygotes can't be distinguished from homozygous dominant individuals, while with codominant markers, heterozygotes display a distinct phenotype from homozygous individuals. Dominant markers are easier to interpret but may not provide as much information as codominant markers.


How is the prefix co related to the meaning of the term codominant?

The prefix "co-" in codominant signifies a relationship where two alleles of a gene are both fully expressed, without one being dominant over the other. In genetics, codominance occurs when both alleles in a heterozygous individual contribute equally to the phenotype.


In some flowers there are two alleles for color and these can both be expressed equally at the same time Which best describes this trait?

This trait is known as co-dominance, where two alleles for a particular gene are both fully expressed in the phenotype. In this case, both colors are visibly present in the flower, rather than blending to create a new color.


What is codominant genotype?

When two alleles are codominant, that means that they are expressed simultaneously in different parts. For example, if a red and white flower were crossed, and the resulting flower had some red petals and some white petals that would be codominance. Another example is when animals have stripes and spots. Not to be confused in incomplete dominance, which is when two alleles are expressed simultaneously in the same part of the organism (in the flower example all the petals would be pink).