Lessons below address this concept: Mutations are random, but selection is not; selection is dependent on many factors.
Found 13 records.

Browse concepts for grades: K-2 | 3-5 | 6-8 | 9-12

 
Lesson Title (Description) Grade Level Lesson Type
Evo in the news: A chink in HIV's evolutionary armor
Medical researchers have spent billions of dollars and many decades trying to develop an HIV vaccine but have, thus far, failed. Why is an HIV vaccine so elusive? This news brief from March 2007 explains how HIV's rapid rate of evolution challenges medicine and describes a new discovery that may allow vaccine developers to sidestep that evolution.
9-12 Article
Evo in the news: Better biofuels through evolution
This news brief from April 2009 describes how synthetic biologists are using the process of directed evolution to improve the efficiency of biofuel production.
9-12 Article
Evo in the news: Ghosts of epidemics past
HIV and malaria both constitute global health threats, respectively affecting more than 30 million and 200 million people worldwide. This news brief from October 2008 describes new research that reveals an unexpected evolutionary link between the two.
9-12 Article
Evo in the news: Got lactase?
The ability to digest milk is a recent evolutionary innovation that has spread through some human populations. This news brief from April 2007 describes how evolution has allowed different human populations to take advantage of the nutritional possibilities of dairying.
9-12 Article
Evo in the news: Seeing the tree for the twigs
Recent research has revealed that, in at least some ways, chimpanzees have evolved more than humans have. This news brief from May 2007 delves into this finding further and, in the process, debunks common misperceptions of human evolution.
9-12 Article
Evolution and Antibiotic Resistance
Students learn why evolution is at the heart of a world health threat by investigating the increasing problem of antibiotic resistance in such menacing diseases as tuberculosis.
9-12 Classroom activity
From the origin of life to the future of biotech: The work of Andy Ellington
This research profile examines how scientist Andy Ellington has co-opted the power of artificial selection to construct new, useful molecules in his lab. The results of his work could help protect us from terrorist attacks and fight HIV and cancer.
9-12 Article
Interview: Douglas Futuyma on natural selection
This interview with one of the most influential evolutionary biologists of today addresses many aspects of natural selection: how it works, examples, misconceptions, and implications.
This article appears at ActionBioscience.org.
9-12 Interview with Scientist
Mechanisms of evolution
Learn about the basic processes that have shaped life and produced its amazing diversity.
This article is located within Evolution 101.
9-12 Tutorial
Origami Birds
Students build and evolve and modify paper-and-straw “birds” to simulate natural selection acting on random mutations.
9-12 Classroom activity
Relevance of evolution: Medicine
Explore just a few of the many cases in which evolutionary theory helps us understand and treat disease. Bacterial infections, HIV, and Huntington's disease are highlighted.
9-12 Article
The Meaning of Genetic Variation
Students investigate variation in the beta globin gene by identifying base changes that do and do not alter function, and by using several internet-based resources to consider the significance in different environments of the base change associated with sickle cell disease.
9-12 Classroom activity
The Natural Selection Game
This is a board game that simulates natural selection. It is suitable for an introductory biology class and for more advanced classes where you could go into more detail on important principles such as the role of variation and mutation.
9-12 Classroom activity
 


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