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Ch 37: TExES Science 7-12: DNA Replication

About This Chapter

When you take the TExES Science 7-12 exam, you'll need to know as much as possible about DNA replication. Study the animated video lessons in this chapter and complete several short quizzes in order to prepare for the certification exam.

TExES Science 7-12: DNA Replication - Chapter Summary

DNA replication and related topics are the focus of this chapter. It consists of video lessons and transcripts that allow you to refresh your memory prior to answering pertinent questions on the TExES Science 7-12 exam. Review this chapter in order to learn all about:

  • Models of DNA replication
  • Helicase and the DNA double helix
  • DNA polymerase and RNA primase as they relate to DNA replication
  • DNA polymerase activities
  • Replication bubbles, enzymes, and leading and lagging strands

Teachers guide you through each of the video lessons, which are usually between five and ten minutes long. The narrated lessons can be watched online with your mobile device, and they can be started and stopped at your convenience. Use the video tags under the timeline link when you want to go to a specific point in a video lesson. Written transcripts provide you with opportunities to explore bold key terms. Ask questions of the experts whenever necessary, and study offline with the printable worksheets that are included.

5 Lessons in Chapter 37: TExES Science 7-12: DNA Replication
Test your knowledge with a 30-question chapter practice test
What Is DNA Replication? - Conservative, Semi-Conservative & Dispersive Models

1. What Is DNA Replication? - Conservative, Semi-Conservative & Dispersive Models

How do we know that DNA replication is semi-conservative? How do we know it's not conservative or dispersive? Let's follow the famous experiment by Meselson and Stahl to find out!

How Helicase Unwinds the DNA Double Helix in Preparation for Replication

2. How Helicase Unwinds the DNA Double Helix in Preparation for Replication

How does semi-conservative replication begin? Discover how DNA helicase creates a replication fork to unwind the complicated DNA molecule and allow daughter strands to form on the parental template.

How DNA Polymerase and RNA Primase Initiate DNA Replication

3. How DNA Polymerase and RNA Primase Initiate DNA Replication

How do enzymes assist in starting DNA replication? In this lesson, we explore the work of a contributing enzyme, DNA polymerase, and learn how the RNA primer is made by the action of RNA primase.

DNA Replication: The Leading Strand and DNA Polymerase Activities

4. DNA Replication: The Leading Strand and DNA Polymerase Activities

How does replication occur in the antiparallel DNA molecule? In this lesson, explore the significance of the leading and lagging strands, and learn how Okazaki fragments and RNA ligase make DNA replication possible.

DNA Replication: Review of Enzymes, Replication Bubbles & Leading and Lagging Strands

5. DNA Replication: Review of Enzymes, Replication Bubbles & Leading and Lagging Strands

Feeling lost in the thorny details of DNA replication? This lesson provides an overview of semi-conservative replication, with a focus on putting together all of the concepts involved. We'll review the work of each enzyme on our way to completing the big picture of DNA replication.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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