About This Chapter
DNA Sequencing & Replication - Chapter Summary
In this chapter on DNA sequencing and replication, engaging lessons cover subjects like the impact of cytoplasmic and mitochondrial inheritance. You will also get an understanding of how DNA molecules are composed of different nucleotides and how ligase is used to engineer recombinant DNA. After completing the chapter, you should be positioned to do the following:
- Discuss the structure of DNA
- Explain the Watson & Crick model of DNA
- Detail how DNA sequencing allows us to determine the genes that make up a person
- Define complementary base pairing
- List the components and structure of nucleotides
- Describe how DNA replicates
- Recall how errors in DNA occur
- Recognize how restriction enzymes played a role in the birth of genetic engineering
Our instructors are skilled at helping you absorb the concepts presented on DNA sequencing and replication. A short quiz is available to test your knowledge after each lesson, and the quizzes can be printed for use as worksheets. For video lessons, the quizzes link back to specific topics in the video, which allows you to review particular topics again with just one click.
1. What is DNA? - Structure, Overview
This lesson will explore the race to find the structure of the DNA molecule, the parts of that structure and how they fit together, and how this knowledge has been used to advance mankind.
2. Watson & Crick Model of DNA
This lesson will review the Watson & Crick model of DNA and how it applies to our understanding of genetic material. By the end you will understand what Watson and Crick discovered and explain what its structure looks like.
3. DNA Sequencing and the Human Genome
DNA sequencing allows us to determine the exact genes that make up an individual. It can be used to screen for certain diseases and in crime scene analysis. Learn more about it in this lesson.
4. Complementary Base Pairing: Definition & Explanation
Explore the composition and structure of DNA molecules. Learn how DNA molecules are composed of four different types of nucleotides that pair with each other in a very specific, complementary manner.
5. Nucleotides: Structure & Components
Nucleotides have a sugar, phosphate, and nitrogenous base. Learn how these simple components allow nucleotides to join together to make polymers like DNA and RNA, as well as energy carrying molecules like ATP.
6. How Does DNA Replicate?
In this lesson, we will learn why DNA replicates as well as how. We'll also learn about the rates of replication and how DNA proofreads itself. After watching the lesson, you can complete a short quiz to test your knowledge.
7. Cytoplasmic & Mitochondrial Inheritance: Types & Impacts
Everyone knows that you inherit genetic information from your parents, but did you know there are multiple ways for this to occur? In this lesson, we'll look at extranuclear inheritance and see what this means for passing on DNA.
8. Mutations: When DNA Is Copied Wrong
In this lesson, we will learn how mutations, or errors in DNA, come about, what kinds of effects they may have, and how they can impact populations as a whole.
9. Restriction Enzymes: Function and Definition
Restriction enzymes played a critical role in the advent of genetic engineering. In this lesson, you will learn what role restriction enzymes play in creating recombinant DNA.
10. How Ligase is Used to Engineer Recombinant DNA
DNA ligase makes recombinant DNA technology possible. In this lesson, you will learn how new versions of genes can be designed for experiments in novel host organisms using DNA ligase.
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Other chapters within the Alberta Education Diploma - Biology 30: Exam Prep & Study Guide course
- Overview of Experimental Design
- Cellular Level of the Nervous System
- Function & Parts of the Nervous System
- Sensation & Perception in Biology
- Function & Parts of the Endocrine System
- The Human Female Reproductive System
- The Human Male Reproductive System
- Chromosomes & Sex Characteristics
- Early Development to Childbirth in Humans
- Mitosis & Meiosis Overview
- Chromosomes & Chromosome Disorders
- Genotypes & Phenotypes
- Genomes, Genes & Alleles
- Genetic Inheritance & Pedigrees
- Transcription & Translation in DNA & RNA
- Genetic Variability & Analytic Methods
- Ecology, Ecosystems & the Environment
- Population Change in Biology
- Alberta Education Diploma - Biology 30 Flashcards