Learn about DNA base pairs. Discover the 4 bases of DNA and how they pair up, how many hydrogen bonds connect the two bases, and how RNA base pairings differ.

This lesson will explain nitrogenous bases, types of bases, and complementary base pairs in both DNA and RNA. It will also cover the rules of base pairing and provide examples.

Learn all about DNA base pairs in this engaging video lesson. Understand their structure and specific pairings, followed by a quiz to test your knowledge.

Learn about the DNA bases adenine, thymine, guanine, and cytosine. Discover which bases pair with each other, known as DNA complementary bases and what they do.

Learn about the structure of DNA base pairs. Identify the molecular structure of DNA, study DNA diagrams, and discover the contributions of the Human Genome Project.

Using base pairing rules (and Chargaff's rule), calculate the amount of cytosine in a sequence of DNA that is 15% thymine.

Your understanding of this molecule can be enhanced by reviewing the lesson called DNA: Adenine, Guanine, Cytosine, Thymine & Complementary Base Pairing. Topics include: A review of nucleic acids

Understand the experiments of Erwin Chargaff and what he discovered. Learn Erwin Chargaff's Rules about DNA's nitrogenous bases. Find what he contributed to DNA.

What is a nitrogenous base? Learn a nitrogenous base definition and see the list of nitrogenous bases, plus see the nitrogenous base pairs in DNA and RNA.

1. Complementary base pairing in DNA assures that only one of the following base pairs exists in DNA. Select the correct base pair.