What do you mean by Codominance?

What do you mean by 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.

What does polygenic mean in biology?

A polygenic trait is one whose phenotype is influenced by more than one gene. Traits that display a continuous distribution, such as height or skin color, are polygenic.

What is Codominance in ecology?

adjective. Ecology. being one of two or more species that are equally dominant in a biotic community: a forest in which oak and hickory are codominant. Genetics. of or relating to two different alleles that are fully expressed in a heterozygous individual.

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.

What is Codominance Vedantu?

Hint: Codominance is a condition in which no allele can mask the other allele, where the expression of both alleles can be seen, and it is said to be a heterozygous condition, one of a good example for the Codominance is ABO blood group system of humans.

What are polygenes give examples?

Related term: polygene. What are polygenic inheritance examples? Human phenotypes or human physical traits such as hair color, height, skin color, blood pressure, intelligence, autism, and longevity are some of the examples of polygenic inheritance.

Why are polygenes called additive?

Polygenic Traits are Additive Most traits are polygenic, meaning more than one gene contributes to their phenotypes. In this case, an individual inherits multiple copies of each allele, rather than inheriting one copy of each allele, from each parent. So, when a trait is polygenic, the alleles are additive.

Are eye colors codominant?

There are definitely codominant traits in people. 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.

What determines maleness in human?

In humans, females inherit an X chromosome from each parent, whereas males always inherit their X chromosome from their mother and their Y chromosome from their father. In this system, referred to as the XX-XY system, maleness is determined by sperm cells that carry the Y chromosome.