All forms of horizontal gene transfer require both the recipient and donor bacteria to be alive.
Answer the following statement true (T) or false (F)
False
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Which one of the following statements about the formation of a peptide bond is incorrect?
A. The reaction is endergonic. B. The reaction is anabolic. C. The reaction is spontaneous. D. The reaction has a positive G. E. None of these choices are incorrect; all of the statements about the formation of a peptide bond are correct.
When DNA gyrase was isolated, Brown and Cozzarelli assessed its activity by gel electrophoresis
Relaxed DNA was shown to become increasingly supercoiled over time until all of the relaxed DNA at the top of the gel would run at the bottom of the gel. If the pattern of bands generated by DNA gyrase was compared to the pattern of a type I topoisomerase, how would they differ? What will be an ideal response?
What are the benefits of wetlands?
A) protection from flooding B) storage of drinking water C) increasing rate of water flow to bodies of water D) production of sediment that is useful for fertilizer
A 20-foot-tall tree that seemed to have stopped growing was cut down by the forester who was concerned that it might be diseased. She had planted it 43 years earlier. Measurements over the past 10 years had shown that the tree's height varied only 2 or 3
inches each year, some years with a height increase and some years with a height decrease. Other data indicated that the tree had 41 rings of similar width and had produced similar numbers of nuts every year for the last 30 years. Based on these data, which conclusion was most likely a part of the forester's report on the tree's health? A) All growth in this tree stopped 10 years ago. B) This was a healthy tree that had reached its mature height but otherwise continued normal growth. C) Overactivity of the tree's apical meristems likely caused the stunted growth. D) The tree did not grow taller because it was putting all of its energy production into nut production.