Macroscopic examination of granules from lesions of mycetoma reveals them to be white to yellow and 0.2 to 2 mm in diameter. Microscopically, the granules consist of loosely arranged, intertwined septate hyaline hyphae cemented together. Which organism can cause a mycetoma infection?
a. Fonsecaea spp.
b. E. dermatitidis
c. Cladosporium spp.
d. P. boydii
D
Macroscopic examination of granules from lesions of mycetoma caused by P. boydii reveal them to be white to yellow and 0.2 to 2 mm in diameter. Microscopically, the granules of P. boydii consist of loosely arranged, intertwined septate hyaline hyphae cemented together.
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A population of ground squirrels has an annual per capita birth rate of 0.06 and an annual per capita death rate of 0.02. Calculate an estimate of the total number of individuals added to (or lost from) a population of 1000 individuals in one year
A) 120 individuals added B) 40 individuals added C) 20 individuals added D) 400 individuals added E) 20 individuals lost
Carbohydrates are composed of:
A. amino acids. B. fatty acids and glycerol. C. nucleotides. D. monosaccharides.
Choose the item that best matches each item
A) polymerization of RNA B) 7-methyl guanosine C) transcribed gene, prior to processing D) contains information in the form of codons E) binds to Pribnow box F) directs RNA polymerase to specific promoters G) binds to promoter H) contains information in the form of anticodons I) 7-methyl adenosine J) associated with transcription termination K) autocatalytic RNA molecules 1) core RNA polymerase 2) sigma (?) subunit of RNA polymerase 3) CAP protein 4) rho (?) factor 5) hnRNA 6) tRNA 7) RNA polymerase 8) ribozymes 9) 5' mRNA cap 10) mRNA
The bonding of two or more atoms creates a(n)
a. ion. b. molecule. c. mixture. d. suspension. e. particle.