Provides a great overview of DNA damage from agents such as ultraviolet light, nuclear radiation, and certain chemicals. Includes DNA strand drawings.

Investigate how the genetic code on a DNA strands controls what protein is produced with this collection of animations and 3D models. Explore an interactive 3D model of the double helix, watch an animation of transcription, and see the...

In this online mini-course learners distinguish between the structure, functions, and processes involved with DNA and RNA.

The learning module helps students gain a deeper understanding of the structure and function of DNA.

Take an interactive quiz over DNA. After completing the quiz, check your score, and then revisit any incorrect question for further review.

[Free Registration/Login may be required to access all resource tools.] A complete, illustrated article describing DNA mutations and how they relate to cancer.

This article contains information on how DNA is repaired to prevent mutated damage from interrupting DNA processes.

Mutation is a process that changes a DNA sequence. But how does a difference in a gene's DNA sequence (or genotype) lead to a difference in an observable trait (or phenotype)?

Chronic myeloid leukemia is a disease caused by a genetic mutation that gives rise to this abnormal protein molecule. The abnormal protein triggers the bone marrow to release dangerous numbers" of white blood cells. Gleevec, the thin...

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...

Experiments found that DNA could sometimes recover from damage. This article illustrates how the discovery was made. Article includes animations, pictures, video, biographical information, and quiz questions that are accessed by clicking...

See how mutations in DNA can affect human cells, and how these mutations can even be corrected by biochemical repair work. [1:05]

[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...

Good explanation of the different types of mutations. Solid background on base-pair substitution.

Provides some very straight forward information regarding genetic information an DNA. Find out about synthesizing proteins, the Central Dogma of molecular biology, and much more.

This article explains how and why mutations are so important to genetics.

[Free Registration/Login Required] Students will take a look at the history of DNA. It lists all the scientists involved in the discovery of DNA. Students will also look at some of the basic facts about DNA and determine the sequence of...

A webpage briefly explaining how a mutation in DNA and RNA can cause the wrong protein to be synthesized. Understand that DNA & RNA are long string of nucleotides that codes protein. The mutations shown include deletion, duplication,...

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...

See how cell division is essential for healthy growth of an organism, and how complex genetic mechanisms have evolved to switch cell division on and off at the proper time for normal development. [0:50]

A brief overview of Sickle cell anemia, a genetic disease that affects hemoglobin in the blood. [1:30]

Build a gene network. The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Explore the effects of mutations within the lac operon by adding or removing genes from the DNA.

This lesson will explain how cancer is caused by a gene mutation. It is 4 of 4 in the series titled "Cancer."

A complete, student-led lesson on cell structure, cell division, and cancer growth. Students work their way through illustrations and animated tutorials, and answer review questions along the way. There is a self-checking quiz at the end...