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Gen Unit 1.1 Review

Quiz by Laikyn Skipper

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15 questions
Show answers
  • Q1
    Which of the following scientist(s) is responsible for the discovery for the double helix structure of DNA?
    Question Image
    Erwin Chargaff (1950)
    Rosalind Franklin (1951)
    Watson and Crick (1952)
    Hershey and Chase (1952)
    30s
  • Q2
    Which of the following scientist(s) is responsible for the base pairing rules?
    Watson and Crick (1953)
    Friedrich Miescher (1869)
    Rosalind Franklin (1951)
    Erwin Chargaff (1950)
    30s
  • Q3
    Which of the following scientists used mice, rough and smooth strains of bacteria for their experiment(s)?
    Question Image
    Miescher (1869) and Gamow (1954)
    Griffth (1928) and Avery, McCarty and MacLeod (1944)
    Griffith (1928) and Hershey, Chase (1952)
    Franklin (1951) and Chargaff (1950)
    30s
  • Q4
    Which of the following correctly labels the molecule above?
    Question Image
    A= covalent bonds, B= nitrogen bases, C= sugar
    A= nucleotide, B= sugar-phosphate backbone, C= hydrogen bonds
    A= sugar phosphate backbone, B= covalent bonds, C= nucleotide
    30s
  • Q5
    What is the correct order of DNA extraction protocol?
    lysis, saline solution, soap, ethanol
    lysis, ethanol, saline solution, soap
    ethanol, saline solution, soap, lysis
    30s
  • Q6
    What will have the most affect on the amount of DNA extracted from a plant, animal and fungus cell?
    the cell wall of fungus and plant cells
    the central vacuole of plant and animal cells
    the chloroplast of animal and fungus cells
    the cell membrane of fungus and plant cells
    30s
  • Q7
    What is the purpose of the hydrogen bonds in DNA?
    it accounts for all of the genetic information
    it allows more information to be stored in the molecule
    it gives stability to the double helix shape
    allows DNA to be easily unzipped when copying or reading information
    30s
  • Q8
    What is the purpose of the sugar-phosphate backbone of DNA?
    it allows DNA to easily unzip when copying or reading information
    it allows more information to be stored in the molecule
    it gives stability to the double helix structure
    it accounts for all of the genetic information
    30s
  • Q9
    What is the purpose of having two strands in DNA instead of one or three?
    if it had less, the molecule would be too hard to copy and if it had more, it would be unstable
    if it had less, it would be unstable and if it had more, it would be harder to copy and read information
    30s
  • Q10
    What is the main purpose of adding saline to the cells?
    it helps dissolve the membrane
    lysis
    it helps separate the DNA from the solution
    it helps the DNA strands clump together
    30s
  • Q11
    What step of DNA extraction protocol helps separate the DNA from the solution?
    lysis
    addition of soap
    addition of salt
    addition of ethanol
    30s
  • Q12
    What is the technical term for cell rupture?
    saline
    ethanol
    lysis
    mashing
    30s
  • Q13
    Which of the following scientist(s) conducted the experiment in the image?
    Question Image
    Franklin (1951)
    Hershey and Chase (1952)
    Watson and Crick (1953)
    Avery, McCarty and MacLeod (1944)
    30s
  • Q14
    What were the major findings of Friedrich Griffith's experiment in 1928?
    he determined that DNA was the genetic material of the cell, not protein, by adding specific enzymes to virulent strains of DNA
    he determined that the overall structure of DNA was a double helix with nitrogen bases in the middle and a sugar-phosphate back
    he determined that bacteria could undergo "transformation" by incorporating the genetic material of other cells
    he determined that bacteriophages injected DNA into host cells in order to replicate, confirming DNA was genetic material
    30s
  • Q15
    Which of the following best explains the similarities between Avery, McCarty, MacLeod (1944) and Hershey, Chase (1952) experiments?
    both confirmed that DNA was the genetic material of the cell
    both used mice and two strains of bacteria
    both focused on the structure of DNA
    both focused on how DNA was used and replicated
    30s

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