There are four blood types: A, B, AB, and O. However, there are three alleles that control blood types: IA, IB, and i. Alleles IA and I are codominant, and the allele "i" is recessive. What are the two genotypes for type A blood? What are the two genotypes for type B blood? What is the one genotype for type AB blood? What is the one genotype for type O blood? 1.

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A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.