In this lab activity from Shelly's Science Spot, students investigate how genetic mutations can affect the ability of animals to survive, by helping, harming, or having no impact.

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...

Students observe natural selection in action and investigate the underlying mechanism, including random mutation and differential fitness based on environmental characteristics. They do this through use of the free AVIDA-ED digital...

Viral genomes are the fastest evolving entities in biology, mainly because of their short replication time and the large quantity of offspring released per cell infected. Evolution occurs by several mechanisms: Random mutation,...

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

Antibiotic resistance is the ability of a microorganism to withstand the effects of an antibiotic. It is a specific type of drug resistance. Antibiotic resistance evolves naturally via natural selection through random mutation, but it...

A multiple-choice quiz on the mechanisms of evolution.

These pages are part of a site called Evolution that accompany a textbook by the same name. Mark Ridley is the author. This section has an advanced discussion of determining allele and genotype frequencies using the Hardy-Weinberg ratio.

This is a college level lecture on genetic drift, complete with mathmatic formulae, includes special links.