In most species of mammals, the O2 affinity of a fetus’s bloodhemoglobin is greater than that of its mother’s blood hemoglobin.However, mammal species are not all the same in the mechanismthat causes the affinities to be different. Specify three distinctmechanisms for the difference in affinity between fetal andmaternal blood hemoglobin. Considering the mechanism of the fetal–maternal difference in O2 affinity, would you say that the evolution of themechanism provides evidence for Jacob’s argument? Explain.

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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.