Question

The modern antibiotic revolution began with the discovery of which antibiotic?

sulfanamide
quinoline
tetracycline
penicillin
acyclovir

Hopanoids found in sedimentary rock are an example of a

biosignature.
microfossil.
stromatolite.
banded iron formation.
prebiotic metabolite.

Which of the following is an opportunistic mycosis?

blastomycosis
histoplasmosis
candidiasis
paracoccidioidomycosis
coccidioidomycosis

Which of the following can only be used as a topical antibiotic?

streptogramin A
vancomycin
gramicidin
amphotericin B
chloramphenicol

Which of the following does not represent evidence of an RNA world?

riboswitches
NADH
RNA viruses
repressors
ribozymes