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Home Questions & Answers Science Biology Question Answers In humans and other primates, as well as in guinea pigs, this vitamin cannot be synthesized, because of the absence of the enzyme L-gulonolactone oxidase; the vitamin is:

    In humans and other primates, as well as in guinea pigs, this vitamin cannot be synthesized, because of the absence of the enzyme L-gulonolactone oxidase; the vitamin is:

  • Nicotinic acid
  • Ascorbic acid
  • Folic acid
  • Pantothenic acid

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