Cold Spring Harbor Laboratory
Dna From the Beginning
At DNA from the Beginning, choose from classical genetics, molecules of genetics, genetic organization and control. Each concept is explained through animation, an image gallery, video interviews, biographies and links.
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.
Khan Academy
Khan Academy: Dna Sequencing
Learn how the sequence of nucleotide bases (As, Ts, Cs, and Gs) in a piece of DNA is determined.
Khan Academy
Khan Academy: Test Prep: Mcat: Biomolecules: Dna: Dna Structure and Function
Provides detailed explanation of DNA's structure and function. Includes illustrations.
Cold Spring Harbor Laboratory
Dna Learning Center: Dna Molecule, Dna Unzip
The DNA double helix contains two sequences of nucleotide code letters than run along the molecule. Untwist the spiral and DNA can be seen as two parallel strands. That's why its sometimes called the double helix. Unzip the strands and...
CK-12 Foundation
Ck 12: Life Science: Transcription of Dna to Rna
[Free Registration/Login may be required to access all resource tools.] DNA is located in the nucleus. Proteins are made on ribosomes in the cytoplasm. Remember that information in a gene is converted into mRNA, which carries the...
BiologyWise
Biology Wise: Nucleoside vs. Nucleotide
Discusses the characteristics of and differences between nucleosides and nucleotides as well as the significance of each in medicine.
Cold Spring Harbor Laboratory
Dna From the Beginning: Classical Genetics
This article from DNA from the beginning is loaded with goodies about genetics and DNA. Starting with Mendel all the way through the concept of DNA, you will see how life is given certain characteristics. Some animations and audio clips...
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...
University of California
Ucmp: Island Biogeography and Evolution
This is a lesson designed by a biology teacher. In it, students use maps and evidence of island age, molecular genetics, morphology, and distance apart to determine how the islands came to be occupied by different species of lizards. It...
BBC
Bbc Mundo: Decodificando a La Humanidad Del Adn
Learn about DNA and decoding the human genome by clicking graphical DNA models. You can also review a timeline that shows important moments in human genetics research. In Spanish.
PBS
Pbs Learning Media: Life's Instruction Manual: Interactive Lesson: Unc Tv Science
The human genome serves as an instruction manual for life, with its own distinct letters, alphabet, sentences and chapters. Learn about the genome, nucleotides, DNA and genes with this interactive lesson.
Mocomi & Anibrain Digital Technologies
Mocomi: What Is Dna?
Answers the questions what makes DNA, where is it found, what does it look like, and how does it work.
University of Utah
University of Utah: Genetic Science Learning Center: What Causes Dna Mutations
Provides a great overview of DNA damage from agents such as ultraviolet light, nuclear radiation, and certain chemicals. Includes DNA strand drawings.
CK-12 Foundation
Ck 12: Nucleic Acids
[Free Registration/Login may be required to access all resource tools.] In ths module, discover the structure of a single nucleotide and how that structure leads to the overall structure of DNA and RNA.
CK-12 Foundation
Ck 12: Nucleic Acids
[Free Registration/Login may be required to access all resource tools.] Online activity covers the structure and function of nucleic acids. Students will learn about nucleotides, the different types of nitrogenous bases, and the...
BiologyWise
Biology Wise: Purines and Pyrimidines
Purines and pyrimidines are nucleotides. Their properties are described here and their differences are highlighted. Includes examples of each.
BiologyWise
Biology Wise: Codon Chart
Explains the workings of the codon translation chart which provides the keys to the structure of amino acids. Includes a widget where one can input a nucleotide triplet combination and see which amino acid it represents. Includes RNA and...
Other
Digital World Biology: Blast Tutorial
A series where students see how to submit a nucleotide sequence, compare it to other sequences using blastn, and interpret some of the results.
CK-12 Foundation
Ck 12: Biology: Nucleic Acids
[Free Registration/Login may be required to access all resource tools.] Covers the structure and function of nucleic acids.
New York University
Model of the Four Nucleotide Bases in Rna
The 3-D model of Cytosine (C), Uracil (U), Adenine (A), and Guanine (G), the four nucleotide bases in RNA. Requires the CHIME plug-in to view the models, or they can be viewed statically in .gif format
Khan Academy
Khan Academy: Nucleic Acids
Discover the structure and function of DNA and RNA, and understand nucleotides and polynucleotides.