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Howard Hughes Medical Institute
Hhmi: Bio Interactive: Understanding Sequence Assembly
A series of lecture clips helps explain how DNA sequencing is done by using the analogy of shredding multiple copies of a book and then reassembling the text by finding overlapping fragments. The ultimate goal of DNA sequencing is to...
Cold Spring Harbor Laboratory
Dna From the Beginning: A Gene Is a Sequence of Nucleotides
Genes are actually a specific sequence of DNA and they have a clear start and stop. Learn about the discovery and sequencing of genes at this site. This multimedia article includes animations, pictures, video, biographical information,...
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.
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...
National Health Museum
Access Excellence: Dna Dry Lab
This lab illustrates how the order of nucleotides in DNA determines the order of amino acids in proteins. Relates DNA function to that of RNAand provides an exercise to demonstrate how mutations may occur. Includes a lesson plan and...
National Health Museum
Access Excellence: Making a Phylogenetic Tree Lesson Plan
Constructing phylogenetic trees may be a daunting task for students, but this lesson plan is a simulation of what molecular biologists must do to determine relationships. This plan is for students who have a good grasp of DNA structure...
Other
Digital World Biology: Blas Ting Through the Kingdom of Life
Use BLAST to identify unknown sequences. GenBank contains over 3 million sequences, with over 14 billion nucleotides. BLAST can be used to compare an unknown sequence to all the sequences in the database, and find sequences that match....
CK-12 Foundation
Ck 12: Life Science: Mutations
[Free Registration/Login may be required to access all resource tools.] The process of DNA replication is not always 100% accurate. Sometimes the wrong base is inserted in the new strand of DNA. This wrong base could become permanent. A...