Of the following, which is the last step in the production of a recombinant DNA plasmid?
A) cloning
B) using DNA ligase to join DNA fragments
C) cutting the gene of interest into fragments
D) allowing the reproduction of the bacterium bearing the recombinant plasmid
B
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Photoperiodism is the ____
a. duration of flowering in a plant b. amount of light needed by a plant to exhibit normal growth c. biological response of a plant to a change in the length of daylight relative to darkness d. light phase of photosynthesize during which photolysis of water occurs e. time of the day when light shines with the most intensity
The cellular targets of physical and chemical agents fall into general categories including those that damage
A) the mitochondrion. B) the cell membrane. C) cytoplasmic inclusions. D) the nucleus.
During exposure to elevated glucose, a yeast cell will increase its uptake of glucose. Describe the mechanism by which the yeast sense the extracellular glucose.
A. by glucose uptake through glucose transporters B. by the increase in energy inside the cell when the glucose is metabolized C. by glucose diffusing into the nucleus and binding to transcription factors D. by glucose binding to glucose receptors E. by the increase in energy outside the cell when the glucose is metabolized
Benzoic acid is largely a(n) (antifungal/antiprotozoal/pickling) agent and does not affect the growth of many bacteria.
Fill in the blank(s) with the appropriate word(s).