The figure shows a simple metabolic pathway.
-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) ?
Definitions:
Carbonyl Group
A functional group consisting of a carbon atom double-bonded to an oxygen atom, commonly found in aldehydes and ketones.
Polarized
Refers to a distribution of electrical charge leading to positive and negative poles within a molecule or chemical bond.
Electrophile
A chemical species that is attracted to electrons and typically accepts an electron pair to form a bond with a nucleophile.
Nucleophile
A chemical species that donates an electron pair to an electrophile to form a chemical bond in a reaction.
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