What happens when genes change? Junior genetic investigators examine the effects of mutation in the third unit of a four-part Biotechnology series. Individuals discover the types of mutations through a series of PowerPoints, then partner...

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.

Given illustrations or partial DNA sequences, students will identify changes in DNA and the significance of these changes.

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

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...

[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...

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

Stem cells found in the bone marrow are crucial for our health because they are needed to become new blood cells that sustain and protect our bodies. But when the transformation goes wrong, harmful mutations can cause the cells to start...

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,...

Mutations can cause a permanent change in the DNA of an organism. Over many generations, organisms have adapted through mutation which involves small changes between organisms which may allow that organism to compete better for survival....

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.

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...

Learn more about the operon model based on studies of lactose-dependent mutations of E. coli with the series of problems presented here. The correct answers have a brief explanation to reinforce the theories and incorrect answers are...

A complete, student-paced lesson on genetics and inheritance. 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 of the lesson.