Mutant fruit flies that do not make Toll protein were tested for survival after fungal infection. The results shown in the accompanying graph support the hypothesis that ________.
A) Toll protein is necessary for protection from death by fungal infection
B) after fungal infection, wild-type flies die more rapidly than mutants lacking the Toll protein
C) flies lacking the Toll protein die within one day of a fungal infection
D) Toll proteins have a delayed affect in killing flies
Correct Answer:
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