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- Describe the structure of nucleic acid and phosphodiester bonds.
- Explain how complementary base pairing works.
- Take a look at the double helix structure of DNA.
- Discuss the differences between DNA and RNA.
1. DNA: Chemical Structure of Nucleic Acids & Phosphodiester Bonds
In this lesson, you'll discover what nucleotides look like and how they come together to form polynucleotides. We'll also explore nucleic acids and focus on DNA in particular.
2. DNA: Adenine, Guanine, Cytosine, Thymine & Complementary Base Pairing
Learn the language of nucleotides as we look at the nitrogenous bases adenine, guanine, cytosine and thymine. Armed with this knowledge, you'll also see why DNA strands must run in opposite directions.
3. DNA: Discovery, Facts, Structure & Function in Heredity
This lesson will help you to navigate the twists and turns of DNA's structure. We'll also clue you in on the amazing discoveries that put this nucleic acid in the limelight as the molecule of heredity.
4. Differences Between RNA and DNA & Types of RNA (mRNA, tRNA & rRNA)
In this lesson, you'll explore RNA structure and learn the central dogma of molecular biology. Along the way, you'll meet the three types of RNA and see how the cell uses them most effectively.
5. DNA Polymerase: Definition & Function
In this lesson, you will learn about the important enzyme DNA polymerase and the role it plays in the process of DNA replication. When you are through, test your understanding with a brief quiz.
6. Introns: Definition & Functions
Did you know that not every letter in your DNA sequence codes for a protein? In this lesson you will learn about one specific type of DNA sequence that does not code for proteins called introns.
7. Lagging Strand of DNA: Definition & Synthesis
A lagging strand is the name for one of the two DNA strands in a double helix that is undergoing replication. This lesson will explain which strand is lagging and how it is replicated.
8. RNA Polymerase II: Structure & Antibody
RNA Polymerase II plays a critical role in the process of creating RNA from DNA. In this lesson, learn about the structure and function of RNA Polymerase II.
9. 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.
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