The enzymes which catalyse the same reaction but have different amino acid composition are commonly referred as:

  1. A. Isoenzymes
  2. B. Isotopes
  3. C. Isomers
  4. D. Coenzymes

Correct Answer: A. Isoenzymes

Explanation

Isoenzymes (or isozymes) are variants of an enzyme that differ in amino acid sequence but catalyze the same chemical reaction.

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