Which of the following Trichophyton spp. grows slowly (14 to 30 days) and best at 35°C to 37°C? In addition, enriched media with thiamine and inositol enhance its growth
a. Trichophyton verrucosum
b. Trichophyton tonsurans
c. T. rubrum
d. T. mentagrophytes
A
T. verrucosum grows slowly (14 to 30 days), and growth is enhanced at 35°C to 37°C on media enriched with thiamine and inositol. T. verrucosum may be suspected when slow-growing colo-nies appear to embed themselves into the agar surface.
You might also like to view...
Which is true concerning cell division?
A. During meiosis I, sister chromatids pair up and then are separated B. An asexually reproducing organism needs mitosis to produce a genetically diverse set of daughter cells in order to maintain genetic diversity C. When comparing the parent and daughter cells, meiosis differs in both the ploidy level and ploidy number, whereas mitosis differs in neither D. During crossing over, an allele for brown eyes may be switched with an allele for brown hair
Escherichia coli living in the human colon can be considered to be a(n):
A) endosymbiont. B) opportunist. C) symbiont in a mutualistic relationship. D) all of the above
If the objective lenses of a microscope can be changed without losing focus on the specimen, they are said to be
A. optifocal. B. parfocal. C. equifocal. D. totifocal.
The structural building blocks for proteins are ____
a. enzymes b. amino acids c. cholesterol d. polysaccharides e. vitamins