A Mutation in Yeast Makes It Unable to Convert Pyruvate

question 35

Multiple Choice

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

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

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