BIOL 133 – An experiment started with 15N15N DNA. After two generations

Please make sure your answeres are 100% correct!! I will NOT give payment for incorrect answers! I need this completed in 2 hours, so do not accept if you cannot meet that deadline!!Question 4 of 100.0/ 1.0 PointsAn experiment started with 15N15N DNA. After two generations in 14N medium, E. coli will have A.25% 14N14N and 75% 15N15N B.75% 15N14N and 25% 14N14 C.50% 15N14N and 50% 15N15ND.50% 15N14N and 50% 14N14NQuestion 6 of 100.0/ 1.0 Points________ creates fragments on the lagging strand. A.DNA polymerase III B.DNA gyrase C.DNA polymerase II D.DNA polymerase IQuestion 8 of 100.0/ 1.0 PointsWhat is a major difference between DNA polymerase I and DNA polymerase III? A.DNA polymerase I synthesizes DNA on leading strands and DNA polymerase III synthesizes DNA on lagging strands B.DNA polymerase I synthesizes DNA on lagging strands and DNA polymerase III synthesizes DNA on leading strands C.DNA polymerase I synthesizes DNA in the 5׳ to 3׳ direction and DNA polymerase III synthesizes on lagging strandsQuestion 9 of 100.0/ 1.0 PointsWhy do purines have to pair with a pyrimidine? A.The distance between hydrogen bonds remains constant B.The distance between the two phophodiester backbones remain constantQuestion 10 of 100.0/ 1.0 PointsSome scientists have proposed that the earliest forms of life may have existed in an “RNA World” where RNA was both the genetic material and responsible for enzymatic activity. Imagine that you have recreated such a life form. What would demonstrate that RNA, but not protein or DNA, is necessary and sufficient for these functions? A.The organism lives and replicates despite RNase and DNase treatment, but the organism dies when treated with protease. B.The organism lives and replicates despite protease and DNase treatment, but the organism dies when treated with RNase. C.The organism lives and replicates despite protease treatment, but the organism dies when treated with DNase and RNase.