Hyaline Molds

Ungraded Practice Question

Several saprophytic, hyaline molds have microscopic characteristics that mimic the mold forms of the dimorphic fungi (Histoplasma capsulatum, Blastomyces dermatitidis, etc.). Each of the following can be used to differentiate the saprophytic from the dimorphic fungi except:

Please select the single best answer

Conversion of the mold form to the yeast form at 37oC incubation
Ability of the dimorphic fungi to grow on cycloheximide-containing culture media
Differential growth profiles on Trichophyton differential agars
Positive reactions for the dimorphic fungi in commercially available nucleic acid probe assays.

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