CK-12 Foundation
Ck 12: Dna Structure and Replication
[Free Registration/Login may be required to access all resource tools.] Module describes how DNA's structure and function was discovered while summarizing the process of DNA replication. This activity also explains Chargaff's rules and...
CK-12 Foundation
Ck 12: Life Science: Dna Structure and Replication
[Free Registration/Login may be required to access all resource tools.] DNA must replicate (copy) itself so that each resulting cell after mitosis and cell division has the same DNA as the parent cell. DNA replication occurs during the S...
American Museum of Natural History
American Museum of Natural History: Dna Base Pairs O Logy Card
Flip this interactive OLogy card to find questions and answers, fast facts, and other bite-size pieces of information to help you understand DNA bases A, T, G, and C.
Vision Learning
Visionlearning: Biology: Dna Ii: The Structure of Dna
Instructional module focusing on the physical structure of DNA. Discussion incorporates the description of the nucleotides, base pairs, and the double helix shape of a DNA molecule. Site also includes an interactive practice quiz and...
CK-12 Foundation
Ck 12: The Dna Double Helix Advanced
[Free Registration/Login may be required to access all resource tools.] Students can watch a video, read some informational text and key vocabulary terms, and answer review questions about the structure of DNA.
Cold Spring Harbor Laboratory
Dolan Dna Learning Center: Dna Molecule: Chargaff's Ratios
Learn about base pairing in DNA, and how the ratios of adenine to thymine and guanine to cytosine are equal. [0:47]
Cold Spring Harbor Laboratory
Dna Interactive: Genome
This site is provided for by DNA Interactive. The genome is the entire endowment of genetic information. It is the "Book of life," on an organism. This site demonstrates the methods used to map and sequence the human genome and to...
National Health Museum
Access Excellence: Dna Molecule Two Views
Access Excellence provides an excellent graphic showing the structure of the DNA molecule and its components.
Other
I Can Do That: Dna Introduction
In story form, this complete site examines what DNA is, the structure of DNA, genes, and replication. For clarity purposes, the text is supplemented with drawings.
University of Utah
University of Utah: Learn Genetics: Build a Dna Molecule
Build a short strand of DNA using the base pairing rule. An interactive learning experience that reinforces the base pairing rule.
Other
National Center for Biotechnology Education: Dna50: Cut Out Model
Students construct DNA base pairs using a template. The base pairs can be used to assemble a large-scale DNA strand for the whole class.
University of California
Ucmp: Computer Model of Dna
A slight departure from the classic view of DNA showing that the molecule is not exactly a twisted ladder. Good image and explanation to go with it.
Curated OER
Science Kids: Science Images: Dna Structure
A 3D computer generated model of humans DNA structure. The double helix image labels base pairs, diameter, major and minor grooves.
BioMan Biology
Bio Man Biology: Life Chemistry Quizzes
Two multiple-choice quizzes, one on the processes and types of biological molecules, the other on the structure and replication of DNA.