Take a closer look into the modern view of evolution. This article includes many pieces of evidence, all which support the theory of evolution.

Scientific information about the hereditary material in all living things, DNA. Also includes links to fact sheets for quick reference.

[Free Registration/Login may be required to access all resource tools.] This article complete with labeled diagrams, key vocabulary terms, and review questions explains the connection between gene regulation and cancer.

Homeotic genes control development of whole body segments or structures. When they are overactive or missing, weird things can happen!

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

Presents information about human chromosomes, their structure, and genetic disorders that can result from mutations.

A start codon is a nucleotide triplet in a genetic sequence that occurs at the start of a protein's synthesis. Read about how this works and how a mutation can sometimes occur.

A stop codon is a nucleotide triplet in messenger RNA that signals the end of a protein during the translation process. Read about how this works, the different types of stop codons, and how a mutation can sometimes occur.

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

Remember going to the doctor and getting vaccine shots? It's no fun getting poked with a needle, but fortunately, a vaccine gives you protection against a serious illness for years to come. This project will show you why.

You have probably seen figures showing how human beings are related to chimpanzees, gorillas, and other primates. In this genomics science fair project, you will use bioinformatics tools to generate your own primate family tree.

Discover more about the late-breaking research into DNA repair shops located in the cell. The work is being done by NASA scientists who are interested in the effects of radiation on astronauts. (Nov. 7, 2007)

Find out about aneuploidy and nondisjunction, as they relate to down syndrome and other related disorders. Also learn about chromosomal rearrangements.

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

Find out about mitochondrial and chloroplast DNA, and why its inheritance does not follow Mendelian patterns.

Discover what evolution is through a case study of a Hawaiian snail species' survival. [7:20]

Take this interactive, multiple-choice quiz over evolution, then review your score and any missed questions at the end.

Macroevolution and microevolution are defined, along with mutation, migration, genetic drift, and natural selection, which are "established mechanisms of evolutionary change."