codominance

American  

[koh-dom-uh-nuhns] / ˌkoʊˈdɒm ə nəns /

noun

1. Ecology. the state of being one of two or more species that are equally dominant in a biotic community.

   Subalpine fir attains climax dominance or codominance in forests throughout the mountains of western North America.

2. Genetics. the state of being one of two different alleles that are fully expressed in a heterozygous individual.

   The AB blood group in humans, in which both the A and B alleles are equally expressed, is a classic example of codominance.

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Etymology

Origin of codominance

First recorded in 1910–15; co- ( def. ) + dominance ( def. )

Compare meaning

How does codominance compare to similar and commonly confused words? Explore the most common comparisons:

• incomplete dominance vs. codominance

Example Sentences

Explain which of Mendel’s laws is violated by codominance.

From Textbooks • Jun. 9, 2022

Both the wild type and mutant display codominance.

From Textbooks • Jun. 9, 2022

Although all diploid individuals have two alleles for every gene, allele pairs may interact to create several types of inheritance patterns, including incomplete dominance and codominance.

From Textbooks • Jun. 19, 2013

A classic example of codominance in humans is ABO blood type.

From Textbooks • Jun. 19, 2013

An example of codominance occurs in the ABO blood groups of humans.

From Textbooks • Apr. 25, 2013