Use the Figure to Answer the Question

question 56

Multiple Choice

Use the figure to answer the question.

Refer to the metabolic pathway illustrated. If A, B, and C are all required for growth, a strain that is mutant for the gene-encoding enzyme A would be able to grow on medium supplemented with which of the following nutrient(s) ?

• A) nutrient A only
• B) either nutrient B or C
• C) nutrient C only
• D) nutrients A and C

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Definitions:

Magnetic Resonance Imaging

A medical imaging technique used to visualize detailed internal structures, using magnetic fields and radio waves.

Electroencephalography

A noninvasive method of recording electrical activity of the brain using electrodes placed on the scalp.

Computerized Tomography

A diagnostic imaging technique that uses a series of X-ray measurements taken from different angles to produce cross-sectional images of specific areas of the body.

Electroencephalograph

is a device used to record the electrical activity of the brain, typically for medical diagnosis or research purposes.