What can you conclude from these data?

Consider the pathway for the synthesis of the amino acid arginine in Neurospora:



Mutant strains of Neurospora may carry one or more mutations. Neurospora mutant strain b is grown on minimal media plus supplements as shown. Growth is shown by (+) and no growth is shown by (o).





A) Strain a has only one mutation and it is in ARG-E.

B) Strain b has only one mutation and it is in ARG-H.

C) Strain a has a mutation in ARG-F and strain b has a mutation in ARG-E.

D) Strain b has mutations in ARG-E, ARG-F, and ARG-H.


C) Strain a has a mutation in ARG-F and strain b has a mutation in ARG-E.

Biology & Microbiology

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