Which transcription factors are normally bound to the Psf promoter in the presence of both Mg2+ and Ca2+?
(a) MetA and MetB
(b) MetB and MetC
(c) MetA and MetC
(d) MetA, MetB, and MetC
Answer: (c) MetA and MetC
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Bacteria and protozoans are ____
a. multicellular organisms b. unicellular organisms c. both unicellular and multicellular organisms d. the sole organisms of the oceans e. precursors to cells
Small, nonterritorial male marine iguanas typically have their mating interrupted by larger males prior to ejaculation. What alternative mating strategy have these small males developed to compensate for this?
A) Small males form coalitions and distract larger males to allow enough time for copulation. B) Small males induce ejaculation prior to copulation, and store the ejaculate in their cloacal pouches. C) Small males have developed the ability to induce ejaculation much more quickly than large males. D) Small males have developed sperm that are more efficient at fertilization than the sperm of larger males.
Which of the following is a function of the Golgi apparatus?
A) digestion of organic matter inside the cell B) protein modification C) drug detoxification D) cell respiration
Which metabolic process is most closely associated with intracellular membranes?
A) substrate-level phosphorylation B) oxidative phosphorylation C) glycolysis D) the citric acid cycle E) alcohol fermentation