Q. CTP is formed from UTP by the action of

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Q. Phosphorylation of AMP to ADP is promoted by

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Q. In the first committed step of pyrimidine biosynthesis, the reaction is catalyzed by

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Q. Which of the following is an important precursor in pyrimidine pathway?

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Q. Which of the following is an important precursor in purine pathway?

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Q. The first intermediate with a complete purine ring is

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Q. An amino group donated by glutamine is attached at C-1 of PRPP, this results in

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Q. Glutathione peroxidase contains a covalently bound

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Q. Which of the following is the precursor for auxin?

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Q. Lignin is derived from

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Q. Cimetidine is a structural analog of

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Q. Which of the following is derived from tryptophan?

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Q. Which of the following is a PLP-requiring enzyme?

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Q. Which of the following is an important cellular reducing agent?

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Q. Which of the following is the precursor for nitric oxide?

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Q. Which of the following gives rise to γ-amino butyrate?

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Q. Tyrosine gives rise to a family of catecholamines that does not include

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Q. Phosphoribosyl pyrophosphate is a precursor of tryptophan and

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Q. Which of the following can be formed by hydroxylation of phenylalanine?

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Q. Which of the following is not an aromatic amino acid?

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