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Consider the Pathway for the Synthesis of the Amino Acid

Question 60

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Consider the pathway for the synthesis of the amino acid arginine in Neurospora: Consider the pathway for the synthesis of the amino acid arginine in Neurospora: Mutant strains of Neurospora are grown in minimal media supplements as follows.Strains may carry more than one mutation.Growth is shown by (+) and no growth is shown by (o) . Indicate the most accurate statement regarding strain A. A) There is a mutation in ARG-H, if citrulline accumulates, ARG-F is also defective. B) There is a mutation in ARG-H, if ornithine accumulates, ARG-F is also defective. C) There is a mutation in ARG-H, if argininosuccinate accumulates, ARG-F is also defective. D) There is a mutation in ARG-H, if citrulline accumulates, ARG-E is also defective. E) There is a mutation in ARG-E, if citrulline accumulates, ARG-F is also defective. Mutant strains of Neurospora are grown in minimal media supplements as follows.Strains may carry more than one mutation.Growth is shown by (+) and no growth is shown by (o) . Consider the pathway for the synthesis of the amino acid arginine in Neurospora: Mutant strains of Neurospora are grown in minimal media supplements as follows.Strains may carry more than one mutation.Growth is shown by (+) and no growth is shown by (o) . Indicate the most accurate statement regarding strain A. A) There is a mutation in ARG-H, if citrulline accumulates, ARG-F is also defective. B) There is a mutation in ARG-H, if ornithine accumulates, ARG-F is also defective. C) There is a mutation in ARG-H, if argininosuccinate accumulates, ARG-F is also defective. D) There is a mutation in ARG-H, if citrulline accumulates, ARG-E is also defective. E) There is a mutation in ARG-E, if citrulline accumulates, ARG-F is also defective. Indicate the most accurate statement regarding strain A.


A) There is a mutation in ARG-H, if citrulline accumulates, ARG-F is also defective.
B) There is a mutation in ARG-H, if ornithine accumulates, ARG-F is also defective.
C) There is a mutation in ARG-H, if argininosuccinate accumulates, ARG-F is also defective.
D) There is a mutation in ARG-H, if citrulline accumulates, ARG-E is also defective.
E) There is a mutation in ARG-E, if citrulline accumulates, ARG-F is also defective.

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