A graphic which communicates the beauty and intricacy of DNA, illustrating how DNA is the core to everything. [3:25]
Observe a scientist describe the process used to extract DNA from a cell and to analyze it on a gene chip. [1:41]
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]
See James Watson reenact his discovery of the base pairs that form the double helix structure of the DNA molecule. [1:42]
A brief introduction to the four building blocks of DNA. [0:25]
A video discussing a variety of biotechnology applications that can be completed based on DNA's chemical properties. [2:44]
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
By the end of this section, you will be able to do the following:
Describe nucleic acids' structure and define the two types of nucleic acids
Explain DNA's structure and role
Explain RNA's structure and roles
Tutorial on DNA basics that goes along with an online quiz over the material. Use the naviagation buttons at the bottom of the page to go to the quiz over the material.
Learn about deoxyribonucleic acid. Get an overview of DNA bases, complementary base pairing, and the structure of the double helix. [13:02]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
