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The mitochondrial ATP synthase is unruffled of multiple proteins, as well as some of these proteins are encoded by genes in the nucleus. One of these proteins is called S. A mutation in the S gene deletes 21 base pairs that are immediately 3' to the start codon. The mutant S gene is transcribed as well as translated but the S protein remains in the cytoplasm. This mutant yeast cell can merely grow anearobically whereas wild type yeast can grow anaerobically or aerobically. Yeast produces as a haploid cell. In wild type cells in the presence of O2 the pH of the mitochondrial matrix is 8 however in cells with this mutant S gene, the pH is 7. Describe these results.

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