ozcaaa選擇題(文件)
【正文】 r d. DNA binding domainb. ligase region e. enzymatic domainc. neutral region f. none of the aboveFOR TRUE AND FALSE, ANSWER BY CIRCLING THE LETTER OF THE CORRECT ANSWER1. When facilitated diffusion occurs,solute molecules move down a concentration gradient, but are transferred across a semipermerble membrane via a uniport,symport,or antiport transport system.a. True b. False2. In the growth and division of a cell,cytokinesis always precedes karyokinesis.a. True b. False3. Karyokinesis can be inhibited by colchicine while cytokinesis is inhibited by cytochalasin B.a. True b. False4. DNA synthesis occurs at a replication 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
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