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.
- 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.
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