The mother has the alleles A and M, given that her blood type is A MM. Since the child has blood type AB MN, then the child has the alleles A, B, M, N. However, the alleles B and N, cannot have come from his/her mother and must have come from the father. Therefore, we are looking for a father with the alleles B and N. Based on this conclusion, the child's father is either Tom (with blood type AB MN) or Bill (with blood type B MN).
A mitochondrion is a membrane-bound cell organelle that generate most of the chemical energy (adenosine triphosphate or ATP) for the cell’s biochemical reactions. The energy is produced by the mitochondria and stored in the small ATP molecules.
