In the hyperthermophile Pyrococcus furiosus, TrmBL1 simultaneously represses genes for ________ and activates genes for _________ synthesis

a. nitrogen fixation / glutamine
b. glutamine synthesis / nitrogen
c. nitrogen assimilation / arginine
d. sugar transport / glucose


Answer: D

Biology & Microbiology

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In contrast to bacterial endospores, fungal spores LACK ________ resistance

A) chemical B) desiccation C) heat D) freezing

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This flagellate is pear-shaped with "falling leaf" motility. It contains variant-specific surface proteins (VSPs) on its surface, which provide a mechanism for the organism to survive in the small intestine as a result of its ability to resist intestinal proteases. The organism is:

a. G. duodenalis. b. C. mesnili. c. D. fragilis. d. E. hominis.

Biology & Microbiology

Which latitude is most likely to have a desert?

a. 30? north and south b. 30? east and west c. 45? north and south d. 50? north and south e. 70? north and south

Biology & Microbiology

If chromatin is in a closed conformation, nucleosome position and histone composition _______________

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology