Genetics Analysis And Principles 5th Edition By Brooker – Test Bank

Chapter 11

DNA Replication

Multiple Choice Questions

1. Which of the following best describes the double-helix of DNA?
   A.It has directionality
   B. The strands are arranged in an anti-parallel arrangement
   C. The strands are complementary
   D. All of the answers are correct

Accessibility: Keyboard Navigation
Bloom’s Level: 1. Remember
Learning Outcome: 11.01.01 Describe the structural features of DNA that enable it to be replicated.
Section: 11.01
Topic: Structural Overview Of Dna Replication

2. The purpose of DNA replication is to produce ______.
   A.Two daughter strands
   B. Two parental strands
   C. Two template strands
   D. None of the answers are correct

Accessibility: Keyboard Navigation
Bloom’s Level: 2. Understand
Learning Outcome: 11.01.01 Describe the structural features of DNA that enable it to be replicated.
Section: 11.01
Topic: Structural Overview Of Dna Replication

3. Which of the following best describes the mechanism of DNA replication in which both parental strands remain together following replication?
   A.Dispersive
   B. Semi-conservative
   C. Conservative
   D. All of the answers are correct

Accessibility: Keyboard Navigation
Bloom’s Level: 2. Understand
Learning Outcome: 11.01.02 Analyze the experiment of Meselson and Stahl and explain how the results were consistent with the semiconservative model of DNA replication.
Section: 11.01
Topic: Structural Overview Of Dna Replication

4. Which of the following best describes the mechanism of DNA replication in which both a parental strand and daughter strand are combined following replication?
   A.Dispersive
   B. Semi-conservative
   C. Conservative
   D. All of the answers are correct

Accessibility: Keyboard Navigation
Bloom’s Level: 2. Understand
Learning Outcome: 11.01.02 Analyze the experiment of Meselson and Stahl and explain how the results were consistent with the semiconservative model of DNA replication.
Section: 11.01
Topic: Structural Overview Of Dna Replication

5. The first generation of replication in the Meselson and Stahl experiment disproved which theory of replication?
   A.Semiconservative
   B. Conservative
   C. Dispersive
   D. None—it took more than one generation to disprove the theory

Accessibility: Keyboard Navigation
Bloom’s Level: 2. Understand
Section: 11.01
Topic: Structural Overview Of Dna Replication

6. You have isolated what appears to be alien DNA. While studying its replication, you performed the exact experiment Meselson and Stahl did. After three generations, the DNA is subjected to a CsCl gradient and only one band appears. What type of replication does this DNA undergo?
   A.Semiconservative
   B. Conservative
   C. Dispersive

Accessibility: Keyboard Navigation
Bloom’s Level: 5. Evaluate
Learning Outcome: 11.01.02 Analyze the experiment of Meselson and Stahl and explain how the results were consistent with the semiconservative model of DNA replication.
Section: 11.01
Topic: Structural Overview Of Dna Replication

7. Bacterial DNA has how many origins of replication?
   A.0
   B. 1
   C. 10
   D. Depends on the size of the DNA

Accessibility: Keyboard Navigation
Bloom’s Level: 1. Remember
Learning Outcome: 11.02.01 Describe the key features of a bacterial origin of replication.
Section: 11.02
Topic: Bacterial Dna Replication: The Formation Of Two Replication Forks At The Origin Of Replication

8. Which of the following is not correct concerning the initiation of bacterial replication?
   A.It involves a region of the DNA called oriC
   B. DNA proteins bind to the DNA to begin separation of the strands
   C. The strands are initially separated at GC-rich regions of DNA
   D. Following initial separation, DNA helicase enzymes continue to unwrap the DNA

Accessibility: Keyboard Navigation
Bloom’s Level: 2. Understand
Learning Outcome: 11.02.01 Describe the key features of a bacterial origin of replication.
Section: 11.02
Topic: Bacterial Dna Replication: The Formation Of Two Replication Forks At The Origin Of Replication

9. DNA helicase enzymes move in what direction along the DNA during DNA replication?
   A.5′ to 3′
   B. 3′ to 5′
   C. They remain stationary

Accessibility: Keyboard Navigation
Bloom’s Level: 1. Remember
Learning Outcome: 11.03.01 Describe how helicase, topoisomerase, and single-strand binding protein are important for the unwinding of the DNA double helix.
Section: 11.03
Topic: Bacterial Dna Replication: Synthesis Of New Dna Strands

10. Prevents supercoiling ahead of the replication fork.
    A. DNA ligase
    B.  DNA primase
    C.  Topoisomerase
    D.  DNA polymerase I
    E.  DNA polymerase III