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You inoculate an unknown organism into tryptone broth. After 24 hour incubation at 37C you add 10 drops of

Kovac's. A red ring develops. What do you know about your organism? Select all that apply.

A.) The organism produces desulfhydrase.

B.) The organism produces tryptophonase.

C.) The organism produced acid.

D.) The organism produced indole.

E.) The organism can utilize tryptophan.

F.) The organism can utilize starch.

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