Humans have four possible blood types (A, B, AB, and O) and these blood types are controlled by three alleles (IA, IB, i). The IA and IB alleles are codominant, but they are both dominant over the i allele. There was a court case where the identity of a child’s father was in dispute. There were three men who could have possibly fathered the child. Alfie, Beau and Charlie. The mother of the child has type A blood, Alfie has type A blood (one of his parents had Type AB blood and the other had Type A), Beau also has Type A blood (both of his parents were Type AB), and Charlie has Type AB blood. a. List the genotypes for all the possible phenotypes: Phenotype Genotype Blood Type A Blood Type B Blood Type AB Blood Type O b. Who is the father? c. Explain why you think your answer is correct. Use a Punnett square to show your reasoning

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Mitochondrial Mutations

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.