plus or ninus in each box to show that the cell will make, or will not make, tunctional Beta galactosidase (product of LacZ gene) or functional permease (product of the lacY gene). Ignore the effects of glucose (pretend it is not present). Each of the 3 cells is a "partial diploid." Not induced (no lactose present) Beta galactosidase (Z) Induced (with lactose) Permease (Y) Beta galactosidase Permease (Y) LacI* P- O° Z+Y• LacI- P+ O* Z Y* LacIS P+ O Z+ Y- LacI+ P+ O+ Z- Y* LacI* P+ O Z* Y- LacI- P* O* Z- 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.