W, X, and Y are the intermediates (in that order) in abiochemical pathway whose product is Z. Z− mutantsare found in five different complementation groups.Z1 mutants will grow on Y or Z, but not W or X. Z2mutants will grow on X, Y, or Z. Z3 mutants will onlygrow on Z. Z4 mutants will grow on Y or Z. Finally,Z5 mutants will grow on W, X, Y, or Z.a. Order the five complementation groups in terms ofthe steps they block.b. What does this genetic information reveal aboutthe nature of the enzyme that carries out theconversion of X to Y?

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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.