Co-Dominance?!!?

Why is it that in co-dominance one allele is expressed in one trait and the other is expressed with another??

How does that work!?

Please help!

Thank you so much!

Comments

  • In some cases a trait may have more than one allele representing the characteristic. This is called multiple alleles. An example of this condition is Human ABO blood typing. A and B type blood are co-dominant while blood type O is recessive to both A and B. Hence your genotypes for A type blood are: AA and AO; B type blood: BB and BO; AB blood is AB, and O type is OO.

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