1. A black mold is isolated from a tissue specimen. Microscopic morphology is si

Question

1.

A black mold is isolated from a tissue specimen. Microscopic morphology is simple conidiophores containing long chains of small oval conidia. The identification of this organism is:

Cladosporium sp.

Fonsecaea sp.

Sporothix schenckii

Phialophora sp.

2.

Sporothrix schenckii has the following characteristic

monomorphic

dimorphic

3.

Francisella tularensis commonly infects:

dogs

cats

rabbits

birds

4.

Smallpox lesions are commonly found first on:

face and head

legs and feet

palms and soles

trunk

Cladosporium sp.

Fonsecaea sp.

Sporothix schenckii

Phialophora sp.

Explanation / Answer

Q1. d. Phialophora sp. Phialophora is a form genus of fungus with short conidiophores, sometimes reduced to phialides.

Q2. b. Dimorphic. Since Sporothrix schenckii life cycle alternates between yeast and hyphal forms, it is dimorphic.

Q3. c. This bacteria infects reservoir hosts which are rabbits. Rabbits fall under the category of Lagomorphs

Q4. a. face and head. Small pox virus preferentially attacks skin cells. Therefore, the first symptoms appear on the forehead, then rapidly spread to the whole face, proximal portions of extremities, the trunk, and lastly to distal portions of extremities

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