Friday, May 10, 2019

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

biota home worl - Essay Examplend shows the status of the daughter strand after the action of desoxyribonucleic acid polymerase, desoxyribonucleic acid primase,and DNA ligase,andcould represent a final resulting strand sequenceafter DNA replica is complete.The DNA polymerase enzyme that was synthesizing the leading daughter strandin thisexample, shown again below, would be producing that daughter strand ofDNA from the rightside of the page toward theleft.In the scenario presented above in question 2, we can also sympathize whats happening on the lagging strand with our snapshot. The lagging strand (the second daughter strand) is being copied from the parental strandcomplementary to the one you deciphered in question 3.DuringDNA synthesis, the replication forks are bi-directional ( cardinal forks unfasten the DNA helix in both directions), and thusthere are a total oftwo DNA polymerase enzymes simultaneously working on this replicationzone. HINT look again at your packet boat fro m 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 atomic number 6 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 sapiensactivity,which doesnt include those people who patronise at the top of a Coloradoalpine 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 p urpose of cell division. However, the

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