Biology - Chapter 4 Self Quiz: DNA: The Molecular Basis Of Life

16 Questions | Total Attempts: 1501

SettingsSettingsSettings
Please wait...
Biology - Chapter 4 Self Quiz: DNA: The Molecular Basis Of Life

SBI 4U1: BIOLOGY - CHAPTER 4 SELF QUIZ: DNA: THE MOLECULAR BASIS OF LIFEThis quiz is a replication of the actual quiz in the Nelson Biology 12 textbook. Please report any mistakes/discrepancies.


Questions and Answers
  • 1. 
    Adenine and guanine are pyrimidines. True or false?
    • A. 

      True

    • B. 

      False

  • 2. 
    The DNA double helix makes a complete turn every 3.4 nm along its length. True or false?
    • A. 

      True

    • B. 

      False

  • 3. 
    DNA’s backbone is held together by hydrogen bonds while the complementary bases are held together by phosphodiester bonds. True or false?
    • A. 

      True

    • B. 

      False

  • 4. 
    If the deoxynucleotide sequence in one strand of a short stretch of DNA double helix is 5'–CTGGAT–3', then the complementary sequence in the opposite strand is 3'–GACCTG–5'. True or false?
    • A. 

      True

    • B. 

      False

  • 5. 
    DNA helicase is an enzyme that ensures that the appropriate complementary base pairs have been added to the growing daughter strands during DNA replication. True or false?
    • A. 

      True

    • B. 

      False

  • 6. 
    DNA replication is conservative. True or false?
    • A. 

      True

    • B. 

      False

  • 7. 
    Joachim Hammerling’s experiment using Acetabularia revealed that the hereditary information is found in the foot of the alga where the nucleus resides. True or false?
    • A. 

      True

    • B. 

      False

  • 8. 
    DNA polymerase III builds a complementary DNA strand during DNA replication in the 3' to 5' direction. True or false?
    • A. 

      True

    • B. 

      False

  • 9. 
    After one replication of double-stranded DNA, some of the daughter DNA molecules contain no parental material. True or false?
    • A. 

      True

    • B. 

      False

  • 10. 
    Erwin Chargaff’s rules state that adenine bonds with thymine, and cytosine bonds with guanine. True or false?
    • A. 

      True

    • B. 

      False

  • 11. 
    Which of the following best describes deoxyribonucleic acid (DNA)?
    • A. 

      It consists of a linear backbone of the sugar deoxyribose and phosphates, with nitrogenous bases attached to the sugar residues.

    • B. 

      It consists of a linear backbone of sugar and bases, with a phosphate group attached to each base.

    • C. 

      It consists of a linear backbone of phosphates and bases, with a sugar group attached to each end.

    • D. 

      It is a double helix when present in single-stranded form.

    • E. 

      It consists of a linear backbone of the deoxyribose sugar.

  • 12. 
    Which of the following is associated with only the lagging strand during DNA replication?
    • A. 

      RNA primers

    • B. 

      DNA polymerase I

    • C. 

      DNA polymerase III

    • D. 

      Okazaki fragments

    • E. 

      DNA gyrase

  • 13. 
    The molecule depicted in Figure 1 is which one of the following?Figure 1
    • A. 

      Sugar

    • B. 

      Nucleotide

    • C. 

      Amino acid

    • D. 

      Purine

    • E. 

      Pyrimidine

  • 14. 
    The percent composition of adenine in a DNA molecule is found to be 35%. Therefore, which of the following is the percent composition of guanine?
    • A. 

      35%

    • B. 

      30%

    • C. 

      15%

    • D. 

      Cannot be determined

    • E. 

      Depends on the species

  • 15. 
    DNA replication occurs in which of the following ways?
    • A. 

      In the 5' to 3' direction only

    • B. 

      In the 3' to 5' direction only

    • C. 

      In both the 5' to 3' direction and the 3' to 5' direction

    • D. 

      In the 3' to 5' direction in the lagging strand

    • E. 

      None of the above

  • 16. 
    Which of the following did Matthew Meselson and Franklin Stahl’s experiment illustrate?
    • A. 

      DNA is the hereditary material.

    • B. 

      DNA is found in the nucleus.

    • C. 

      DNA replicates semiconservatively.

    • D. 

      DNA replicates conservatively.

    • E. 

      DNA is composed of a deoxyribose sugar, a phosphate group, and a nitrogenous base.