This is a three video collection about the discovery of DNA structure and function, how it was discovered, and how it works.
The Double Helix is the story of the scientists and evidence involved in one of the most important scientific quests of the 20th century: the discovery of the structure of DNA. [16:53]
This narrated animation allows the learner to understand how six feet of DNA can be tightly packed to fit inside the nucleus of every human cell. [1:43]
Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.
By the end of this section, you will be able to do the following:
Explain how the structure of DNA reveals the replication process
Describe the Meselson and Stahl experiments
By the end of this section, you will be able to do the following:
Discuss the different types of mutations in DNA
Explain DNA repair mechanisms
By the end of this section, you will be able to do the following:
Discuss the similarities and differences between DNA replication in eukaryotes and prokaryotes
State the role of telomerase in DNA replication
By the end of this section, you will be able to do the following:
Explain the process of DNA replication in prokaryotes
Discuss the role of different enzymes and proteins in supporting this process
By the end of this section, you will be able to do the following:
Describe the structure of DNA
Explain the Sanger method of DNA sequencing
Discuss the similarities and differences between eukaryotic and prokaryotic DNA
By the end of this section, you will be able to do the following:
Explain transformation of DNA
Describe the key experiments that helped identify that DNA is the genetic material
State and explain Chargaff’s rules
Discover how the structure of DNA relates to its hereditary function in these videos from the American Masters film Decoding Watson. The first video, "DNA Structure and Function," [2:07] can be used with all middle and high school biology classes. The second video, "Discovering DNA," [0:55] is the Hereditary Material, contains advanced material and is more suited for students i n AP Biology classes. The accompanying classroom activity, appropriate for all students, explores how the building blocks of DNA assemble into a double helix. Additional support materials are available, including handouts, discussion questions and vocabulary.
A nice tutorial on DNA structure. The menu at the bottom allows you to view some different information.
Students conduct their own research to discover and understand the methods designed by engineers and used by scientists to analyze or validate the molecular structure of DNA, proteins and enzymes, as well as basic information about gel electrophoresis and DNA identification. In this computer-based activity, students investigate particular molecular imaging technologies, such as x-ray, atomic force microscopy, transmission electron microscopy, and create short PowerPoint presentations that address key points. The presentations include their own explanations of the difference between molecular imaging and gel electrophoresis.
This video explains how DNA works and what it does, relating it to an instruction manual for building an organism. [4:29] Followed by a short quiz and a list of additional resources to explore.
Provides detailed explanation of DNA's structure and function. Includes illustrations.
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A video that shows the similarities and dissimilarities between human's and chimpanzee's DNA by examining the DNA sequence code. [2:14]
