AP Biology Mid-Term Exam

  1. From the perspective of the cell receiving the message, the three stages of cell signaling are




    C.
  2. Which description below is not a way that transposable elements can contribute to genome evolution?





    B.
  3. Which of the following is least related to the other items?





    D.
  4. Image Upload 1
    In the late 1950s, Meselson and Stahl grew bacteria in a medium containing "heavy" nitrogen (15N) and then transferred them to a medium containing 14N. Which of the results in the figure above would be expected after one DNA replication in the presence of 14N?





    C.
  5. A eukaryotic cell lacking telomerase would





    C.
  6. For a science fair project, two students decided to repeat the Hershey and Chase experiment, with modifications. They decided to label the nitrogen of the DNA, rather than the phosphate. They reasoned that each nucleotide has only one phosphate and two to five nitrogens. Thus, labeling the nitrogens would provide a stronger signal than labeling the phosphates. Why won't this experiment work?





    A.
  7. The genetic code is essentially the same for all organisms. From this, one can logically assume all of the following except





    E.
  8. Refer to the choices to answer the following question.






    reduction of oxygen which forms water

    a. A
    b. B
    c. C
    d. D
    B.
  9. Refer to the choices to answer the following question.






    synthesis of ATP by the chemiosmotic mechanism

    a. A
    b. B
    c. C
    d. D
    C.
  10. Use the following answers for the following question.







    External DNA is assimilated by a cell.

    a. A
    b. B
    c. C
    d. D
    e. E
    A.
  11. Use the following answers for the following question.







    A plasmid is exchanged between bacteria through a pilus.

    a. A
    b. B
    c. C
    d. D
    e. E
    D.
  12. Use the following answers for the following question.







    DNA is transferred from one bacterium to another by a virus.

    a. A
    b. B
    c. C
    d. D
    e. E
    A.
  13. Use the terms below to answer the following question.







    -globins and B-globins are classic examples of which type of DNA?

    a. A
    b. B
    c. C
    d. D
    e. E
    B.
  14. Use the terms below to answer the following question.







    This is most commonly found in inactivated DNA regions.

    a. A
    b. B
    c. C
    d. D
    e. E
    B.
  15. According to the fluid mosaic model of cell membranes, which of the following is a true statement about membrane phospholipids?





    E.
  16. Which of the following is true for both prokaryotic and eukaryotic gene expression?





    B.
  17. It became apparent to Watson and Crick after completion of their model that the DNA molecule could carry a vast amount of hereditary information in its





    B.
  18. What is the function of reverse transcriptase in retroviruses?





    C.
  19. A part of an mRNA molecule with the following sequence is being read by a ribosome: 5' CCG-ACG 3' (mRNA). The following activated transfer RNA molecules (with their anticodons shown in the 3' to 5' direction) are available. Two of them can correctly match the mRNA so that a dipeptide can form.
    Image Upload 2
    The dipeptide that will form will be





    E.
  20. Which term most precisely describes the cellular process of breaking down large molecules into smaller ones?





    C.
  21. Which of the following best describes the complete sequence of steps occurring during every cycle of PCR?

    1. The primers hybridize to the target DNA.
    2. The mixture is heated to a high temperature to denature the double stranded target DNA.
    3. Fresh DNA polymerase is added.
    4. DNA polymerase extends the primers to make a copy of the target DNA.





    C.
  22. After mixing a heat-killed, phosphorescent strain of bacteria with a living non-phosphorescent strain, you discover that some of the living cells are now phosphorescent. The best evidence that the ability to fluoresce is a heritable trait would be an observation that





    D.
  23. ____ is used to make complementary DNA (cDNA) from RNA





    D.
  24. ____ separates molecules by movement due to size and electrical charge





    A.
  25. ____ produces multiple identical copies of a gene for basic research or for large-scale production of a gene product





    D.
  26. ____ cuts DNA molecules at specific locations





    A.
  27. ____ seals the sticky ends of restriction fragments to make recombinant DNA





    B.
  28. What is the enzymatic function of restriction enzymes?





    E.
  29. Which of the following statements is false when comparing prokaryotes with eukaryotes?





    A.
  30. Where does glycolysis takes place?





    D.
  31. RNA polymerase and DNA polymerase differ in that





    B.
  32. The process of transduction usually begins





    D.
  33. If a cell were unable to produce histone proteins, which of the following would be expected to occur?





    E.
  34. Viruses are referred to as obligate parasites because





    E.
  35. All of the following molecules are part of the cell membrane except





    B.
  36. Which of the following is characteristic of the lytic cycle?





    E.
  37. Which of the following represents a similarity between RNA and DNA?





    D.
  38. What is the most logical sequence of steps for splicing foreign DNA into a plasmid and inserting the plasmid into a bacterium?
    I. Transform bacteria with recombinant DNA molecule.
    II. Cut the plasmid DNA using restriction enzymes.
    III. Extract plasmid DNA from bacterial cells.
    IV. Hydrogen-bond the plasmid DNA to nonplasmid DNA fragments.
    V. Use ligase to seal plasmid DNA to nonplasmid DNA.





    B.
  39. Which of the following statements is true?





    C.
  40. Muscle cells and nerve cells in one species of animal owe their differences in structure to





    D.
Author
lap0216
ID
60329
Card Set
AP Biology Mid-Term Exam
Description
This is for Ms. Kelly's AP Biology class.
Updated