Codominance

• What is codominance in genetics?

  Codominance is a type of non-Mendelian inheritance where two alleles from a single gene are both expressed.
• What is an example of codominance in humans?

  The MN blood group is an example of codominance in humans.
• What are the alleles for the MN blood group trait?

  • M allele
  • N allele
• What is the ABO blood type an example of?

  The ABO blood type is an example of a trait that exhibits codominance and multiple alleles.
• How many alleles are there for the ABO blood type gene?

  • Three alleles: A, B, and O
• How does blood type relate to parent-offspring relationships?

  Blood type helps establish the relationship between parents and their offspring due to the transmission of genes.
• What largely determines blood type?

  Blood type is largely determined by the presence of antibodies on the surface of RBC
• In codominance, how are traits expressed?

  In codominance, both of the traits present in alleles are expressed.