Which of the folowing statement negarding the early events of DNA replication s

Question

Which of the folowing statement negarding the early events of DNA replication s tre? A.DaA is the trst proten to bnd to the orgin of Repication Origin of Repication is the protein thst marks the region in he DNiA where replicaton wi begin CDnaB is the helicase which unwinds the double halical structure of DNA D.Drac has no activity but responstie tr bnrg DnaA t the Ogn of Resore, E Two of the listed statements are correct r F. Three of the listed statements are correct G. All of the listed statements are correct Question 2 Hershey and Chase carried out an experimant to folow the movement of thle bacterioghage DNA and prodeins during infection and viral replication inside of the bactera host What siere the evidence t DNA is the genetic material and not proteins? Choose the most comect answe A.The 35-Snatioactivity is mostly to nd with the banna nd not n he spenta r B Two of the listed answers are comect D. The 32-P radioactivity is mostly found with the becteria and not in the supematant E.The 32-P radioactivity is mosty found we, nthe supernatant ara notte Question 3 In the Transtomation experiment performed by Grfth two strans of Pisacaco" bases … studied to determine ther abilty to case disease and death mce What·id te e tenet tre the R and the S strain bacteria were killed by heat and injected into the mice? AThe mice would be heathy and allve, and he s sten beter woe be mo ewto B.The mice would get sick anddie, and ive R stran ra d be mo ne t n sad C C The mice would get sick and die, and live S strain bactera mice would be recovered from the deed mice. ive mice mice D. The mice would be healthy and alive, and no Pheumococous bacteria woutd be recovernd ton the E.The mice would be heathy and alive, and bve R stan tatere woe bere owed toh te he Question 4 Which ofthe following provides the tree 3OH goup for DNA polmerase to1: of telomere DNA? r A The end of the previous Okazakd fragment B.The RNA prmers laid down by prase C. The RNA found ih telomerase D.The ends are filed i, by RNA polymerase which does not regre a tee

Explanation / Answer

Answer for quesion number 1 : The correct option is E (Two of the listed statements are correct)

Explanation :

Statement B is wrong, because origin of replication is not a protein but the DNA sequence where exactly the replication initiation occus in E coli.

Statement D is wrong, becuase DnaC is required for the binding of DnaB protein which has helicase activity. (DnaC has nothing to do with DnaA proteins activity.

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