3 Weeks Exam Retake (1)

13 Questions

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3 Weeks Exam Retake (1)

Questions and Answers
  • 1. 
    The following illustration depicts which stage of mitosis.
    • A. 

      Metaphase

    • B. 

      Telophase

    • C. 

      Prophase

    • D. 

      Anaphase

  • 2. 
    What type of bonds hold the DNA strands together?
    • A. 

      Hydrogen Bonds

    • B. 

      Nitrogen Bonds

    • C. 

      Phosphate Bonds

    • D. 

      Helium Bonds

  • 3. 
    Which of the following is not part of interphase, which is the longest phase of the cell cycle?
    • A. 

      G0

    • B. 

      G2 G2

    • C. 

      G1

    • D. 

      S-Phase

  • 4. 
    Crossing over between non-sister chromatids during meiosis is significant in heredity.  This process most likely leads to an increase in which of the following?
    • A. 

      Genetic variation

    • B. 

      Number of gametes.

    • C. 

      The occurrence of polyploidy

    • D. 

      The expression of dominant traits

  • 5. 
    The diagram below shows the process of meiosis.The segregation that occurs during meiosis results in a-
    • A. 

      Reduction in the number of chromosomes per cell.

    • B. 

      Decrease in the total number of cells per organism.

    • C. 

      Single fertilized egg.

    • D. 

      Group of genetically identical cells

  • 6. 
    The sequence of nitrogen bases in DNA varies.  The sequence of the bases in DNA is most important for which of the following?
    • A. 

      Providing the instructions for traits of an organism

    • B. 

      Preventing mutations from occurring during DNA Replication

    • C. 

      Allowing the DNA to have the shape necessary for replication.

    • D. 

      Helping the sugar phosphate backbone

  • 7. 
    All of the following are true EXCEPT-
    • A. 

      In animal cells the division of the cytoplasm does not occur.

    • B. 

      In animal cells the cell membrane is drawn inward until it pinches off.

    • C. 

      In plant cells a cell plate develops.

    • D. 

      In a plant cell the cell wall does not pull inward.

  • 8. 
    Which statement applies to meiosis?
    • A. 

      Four Daughter cells are haploid and genetically different

    • B. 

      Two daughter cells are identical

    • C. 

      Production of body cells

    • D. 

      The daughter cells are diploids

  • 9. 
    What structure allows the chromosomes to split during cell division?
    • A. 

      Spindle Apparatus

    • B. 

      Centrioles

    • C. 

      Chromosomes

    • D. 

      Nuclear Envelope

  • 10. 
    Which statement best describes the DNA molecules made from this process?
    • A. 

      The two new DNA strands are identical with one strand from the original and one new strand.

    • B. 

      Both strands are not identical.

    • C. 

      The sequence in both strands are different.

    • D. 

      The amount of the DNA in the new strand is more that the original.

  • 11. 
    In which of the following statements does meiosis play a more significant role than mitosis?
    • A. 

      In genetic variation.

    • B. 

      In the formation of diploid cells.

    • C. 

      In the production of enzymes

    • D. 

      Forming body cells.

  • 12. 
    What is the differene between the cells at the start of the s-phase and ones at G2
    • A. 

      The cells in G2 will have double the amount of DNA.

    • B. 

      The cells in G2 will have no change in the amount of DNA.

    • C. 

      The cells in the S-Phase have the more DNA.

    • D. 

      The cells in G2 will look exactly like the ones in entering the S-Phase. No changes.

  • 13. 
    The following image depicts what phase of mitosis?
    • A. 

      Anaphase

    • B. 

      Telophase

    • C. 

      Metaphase

    • D. 

      Prophase