A Neurospora Nonsense Mutation Known to Be UAG Is Treated

Multiple Choice

A Neurospora nonsense mutation known to be UAG is treated with two compounds,hydroxylamine and 5-bromouracil.Hydroxylamine (HA) causes G·C → A·T transitions,while 5-bromouracil causes T·A → C·G transitions.Which of these agents do you expect to induce revertants?

A) Both agents are expected to induce revertants.
B) Both agents are expected to induce revertants,but hydroxylamine will be more effective.
C) 5-bromouracil only is expected to induce revertants.
D) Hydroxylamine only is expected to induce revertants.
E) Neither hydroxylamine nor 5-bromouracil agents are expected to induce revertants.