About This Chapter
Who's it for?
Anyone who needs help learning or mastering AP Biology material will benefit from taking this course. There is no faster or easier way to learn AP Biology. Among those who would benefit are:
- Students who have fallen behind in understanding double helices, leading strands and DNA replication
- Students who struggle with learning disabilities or learning differences, including autism and ADHD
- Students who prefer multiple ways of learning science (visual or auditory)
- Students who have missed class time and need to catch up
- Students who need an efficient way to learn about DNA replication
- Students who struggle to understand their teachers
- Students who attend schools without extra science learning resources
How it works:
- Find videos in our course that cover what you need to learn or review.
- Press play and watch the video lesson.
- Refer to the video transcripts to reinforce your learning.
- Test your understanding of each lesson with short quizzes.
- Verify you're ready by completing the DNA replication chapter exam.
Why it works:
- Study Efficiently: Skip what you know, review what you don't.
- Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
- Be Ready on Test Day: Use the DNA replication chapter exam to be prepared.
- Get Extra Support: Ask our subject-matter experts any DNA replication question. They're here to help!
- Study With Flexibility: Watch videos on any web-ready device.
Students will review:
This chapter helps students review the concepts in a DNA replication unit of a standard AP Biology course. Topics covered include:
- Defining DNA replication
- Unwinding the double helix in DNA
- Initiating DNA replication with polymerase and RNA
- Leading strands
- Replication bubbles and enzymes
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!
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.
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.
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.
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.
6. James Watson: Contributions & Double Helix
This lesson will discuss the life and scientific contributions of James Watson, the American biochemist who was part of the team responsible for the discovery of the structure of the double helix. Once finished, review what you learned with a quiz.
7. Okazaki Fragments: Definition & Overview
Learn what Okazaki fragments are and how they are formed during the process of DNA replication. There is a short quiz to follow to see how well you understand the lesson.
Earning College Credit
Did you know… We have over 95 college courses that prepare you to earn credit by exam that is accepted by over 2,000 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the AP Biology: Help and Review course
- AP Biology - Science Basics: Help and Review
- AP Biology - The Origin of Life on Earth: Help and Review
- AP Biology - Evolution: Help and Review
- AP Biology - Inorganic Chemistry: Help and Review
- AP Biology - Organic Chemistry: Help and Review
- AP Biology - Enzymatic Biochemistry: Help and Review
- AP Biology - Cell Biology: Help and Review
- AP Biology - Requirements of Biological Systems: Help and Review
- AP Biology - Cell Division: Help and Review
- AP Biology - Metabolic Biochemistry: Help and Review
- AP Biology - DNA and RNA: Help and Review
- AP Biology - Transcription and Translation: Help and Review
- AP Biology - Genetics and Heredity: Help and Review
- AP Biology - Genetic Mutations: Help and Review
- AP Biology - Classification of Organisms: Help & Review
- AP Biology - Plant Biology: Help and Review
- AP Biology - Plant Reproduction and Growth: Help and Review
- AP Biology - Animal Reproduction and Development: Help and Review
- AP Biology - Reproductive Systems: Help and Review
- AP Biology - Circulatory & Respiratory Systems: Help & Review
- AP Biology - Nervous & Endocrine Systems: Help & Review
- AP Biology - Ecology: Help and Review
- AP Biology - Animal Behavior: Help and Review
- Laboratory Techniques in Molecular Biology: Help & Review
- AP Biology - Laboratory: Help and Review
- AP Biology - Analyzing Scientific Data: Help and Review
- AP Biology - Basic Molecular Biology Lab Techniques: Help and Review