The replication of a DNA molecule begins at particular sites called _____. a parental strands b replication bubbles c origins of replication d replication forks

DNA replication is described as semi-conservative because _____. A. one leading strand and one lagging strand are produced in DNA replication   B. all new DNA strands are synthesized continuously   C. one new DNA strand is synthesized discontinuously   D. DNA replication can never produce DNA molecules which consist of both original DNA stands   E. one DNA strand is the template while the complementary strand is not

Label the following on the diagram leading strand lagging strand 5' 3. 3' replication fork the direction that the replication fork moves: left or right parent strands 3' daughter strands

A DNA polymerase has everything it needs for extension, EXCEPT for RNA primers. What is the most likely consequence of this? No DNA replication will occur at all O DNA replication will occur much more slowly O Replication will be highly error-prone O Only one DNA strand will be replicated

Models for DNA replication There were three major models for DNA replication. Label each of the models in the figure with the correct name. Conservative Semiconservative Dispersive

Cancer cells continuously replicate: some cancer patients receive a DNA gyrase inhibitor as part of their treatment plan. This inhibitor prevents ___. The release of the supercoil ahead of the replication fork. The addition of complementary DNA bases  Removal of RNA primer

DNA polymerase III adds nucleotides ________.     to both ends of the RNA primer     to the 5' end of the RNA primer     to the 3' end of the RNA primer        in the place of the primer RNA after it is removed     to internal sites in the DNA template

Draw and analysis of DNA replication at one replication fork. Show how the leading and lagging strands are synthesized and the proteins (enzymes) involved in DNA replication and what their functions are

7.     Replication factor C plays which of the following roles in eukaryotic DNA replication?A.    the sliding clampB.    the clamp loaderC.    the DNA ligaseD.    a single-stranded DNA binding proteinE.    a cofactor required for activating the DNA polymerase 8. Phages that program the host cell for continued particle releasing without killing the cell are called ____________ phages.A.    lyticB.    lysogenicC.    temperateD.    chronicE.    none of the above 9. Retroviruses use _______ to make a DNA copy of their RNA genome.A.    restriction enzymesB.    DNA polymerase IC.    RNA polymerase IID.    reverse transferaseE.    reverse transcriptase

List the steps (and the major enzymes in each step) involved in DNA replication