________ refers to heat from deep underground sources used as a source of energy
Fill in the blank(s) with correct word
Geothermal power; Geothermal; or Geothermal energy (any term can be used here)
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The terminator versus anti-terminator function of the T box-based riboswitch used by Gram-positive bacteria to regulate amino acid-related genes is determined by
A. the binding of the T box binding protein. B. the utilization of the appropriate sigma factor by RNA polymerase. C. the rate of leader peptide synthesis. D. the binding of the appropriate uncharged tRNA.
Which of the following situations would be MOST likely to produce a new species?
A. A new group of polyploid individuals arises by an abnormal mitosis and can only reproduce with each other. B. Several individuals join an existing population and introduce new alleles to the population. C. Several individuals colonize a new area but continue to migrate back to the original colony to reproduce with the ancestral population. D. An existing species becomes subdivided by the effects of a glacier and the resulting groups remain physically isolated from each other for thousands of years; when united they are still able to reproduce between groups. E. A volcano erupts and kills all of the frogs on an island. New frogs colonize the island and begin reproducing rapidly because there are no predators.
A common adaptation of coastal plants that grow on sand dunes is
A. deep roots to extract moisture. B. broad leaves for enhanced photosynthesis. C. secretion of proteinaceous threads. D. increased transpiration of water. E. elevated growth rates.
You are studying an enzyme-catalyzed reaction that induces a particular cellular activity in the lab. If you wanted to slow down that particular cellular activity by controlling the enzyme, what could you do?
A. increase the pH of the media the cells are growing in to the optimum pH B. decrease the temperature of the incubator where the cells are growing C. add an allosteric activator to the cells D. add cofactors to the media the cells are growing in