This lesson will examine the concept of codominance using blood types as an example.

See More
Try a College Course Free

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

Begin Free Trial
No credit card required

27 Sophia partners guarantee credit transfer.

245 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 21 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.


En esta lección vamos a estudiar el concepto de codominancia. Codominancia es cuando ambos alelos para un rasgo se expresan juntos.

Terms to Know
  • Codominance

    When two alleles express themselves vs. one dominating the other; an example would be A.B.O. blood groups.

  • Multiple Allele System

    A gene that has three or more alleles or alternative sets of genes, again an example would be the A.B.O. blood group.