Duplicated centrioles move to opposite poles of a dividing __________ cell during __________ of the
cell cycle.
a. plant; metaphase
b. plant; anaphase
c. prokaryotic; metaphase
d. animal; interphase
e. animal; prophase
E
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The component(s) of E. coli RNA polymerase responsible for promoter recognition is/are referred to as:
A. sigma factor. B. the TATA box. C. the mediator complex. D. an enhancer. E. transcription factors.
Which of the following is true regarding cell
membrane proteins? a. All are free to move laterally through the lipid bilayer. b. All are rigidly positioned. c. Some are tethered by cytoskeletal elements. d. Some form complexes. e. Some are tethered by cytoskeletal elements, and some form complexes.
Proteins are macromolecules composed of long strings of single units called nucleic acids.
a. true b. false
Which of the following processes produces the most ATP per molecule of glucose oxidized?
A) aerobic respiration B) alcoholic fermentation C) lactic acid fermentation