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【正文】 ation is bidirectional,meaning that there are two replication forks originating at each origin,in both prokaryotes and eukaryotes .Cells make use of DNA polymerase to duplicate parts of both the leading and lagging strands.a. True b. False5. Nuclear pores represent something like 1025% of the eukaryotic nuclear surface membrane,and such pore is slightly less than 10nm in diameter.a. True b. False6. Desmosomes are usually small buttonshaped areas which associate adjacent cells and provide for movement of small molecules between cells and electronic coupling of cells.a. True b. False7. Ribulose1,5bisphosphate bines with CO2 to form citric acid in the CalvinBenson cycle.a. True b. False8. Energy transformations by electron transport take place in both photosynthesis and glycolysis.a. True b. False9. In eukaryotic cilia and flagella, activity is mediated by myosin heads that 39。walk39。 along adjacent microtubular doublets during a release from inhibition and utilize ATP during this process.a. True b. False10. A nucleosome is a nuclear body which contains histone proteins and is surrounded with approximately 150 nucleotide base pairs of DNA and separated from adjacent nucleosomes by an approximately 50 nucleotide base pair linker.a. True b. False
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