A Mutation in Yeast Makes It Unable to Convert Pyruvate

question 61

Multiple Choice

A mutation in yeast makes it unable to convert pyruvate to ethanol. How will this mutation affect these yeast cells?

• A) The mutant yeast will be unable to grow anaerobically.
• B) The mutant yeast will grow anaerobically only when given glucose.
• C) The mutant yeast will be unable to metabolize glucose.
• D) The mutant yeast will die because they cannot regenerate NAD⁺ from NAD.
• E) The mutant yeast will metabolize only fatty acids.

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