Biology home worl Essay Example | Topics and Well Written Essays - 250 words

Biology home worl - Essay Example nd shows the status of the daughter strand after the action of DNA polymerase, DNA primase,  and DNA ligase,  and  could represent a final resulting strand sequence  after DNA replication is complete. The DNA polymerase enzyme that was synthesizing the leading daughter strand  in this  example, shown again below, would be producing that daughter strand of  DNA from the right  side of the page toward the  left. In the scenario presented above in question #2, we can also see whats happening on the lagging strand with our snapshot.   The lagging strand (the second daughter strand) is being copied from the parental strand  complementary to the one you deciphered in question #3.  Ã‚   During  DNA synthesis, the replication forks are bi-directional (two forks unzip the DNA helix in both directions), and thus  there are a total of  two DNA polymerase enzymes simultaneously working on this replication  zone.   HINT: look again at your packet from class and the drawing of the replication bubble. An enzyme called __________________ unwinds the double helix, but thank goodness for the enzyme _________________ which is responsible for relieving the coiling or supercoiling ahead of the replication fork.   During the synthesis of DNA, DNA polymerase breaks the bond between the first and second phosphates from an incoming deoxynucleoside triphosphate. In the process, a new bond links two nucleotides together, from the carbon in position # 3 with the carbon atom in position # 5, of the sugar.   You are more likely to be struck by lightning in a given year (based on average Homo sapiens  activity,  which doesnt include those people who stand at the top of a Colorado  alpine ridge with a metal rod in late July), than for a mistake to result from the replication of DNA and not be corrected  (based on the average number of errors per number of nucleotide bases,  after proofreading and DNA repair is complete. DNA can be replicated for the purpose of cell division.   However, the