Science Spotlight

EVOLUTIONARY BIOLOGY

Want to learn more about Dr. Cassandra Extavour’s field? Dig into the resources below!


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How do humans and other living things work? And how did we get that way?

These are some of the core questions that drive Dr. Extavour’s work. is a geneticist who studies evolutionary and developmental genetics. She uses a number of model organisms in her work, including crickets. Her work has helped us better understand how natural selection works. including is known for demonstrating that germ cells engage in cell to cell competition before becoming a gamete, which indicates that natural selection can affect and change genetic material before adult sex reproduction takes place.[3][4] She was also the Director of EDEN (the Evo-Devo-Eco Network), a National Science Foundation-funded research collaborative that encouraged scientists working on organisms other than the standard lab model organisms to share protocols and techniques

Key Concepts

MODEL ORGANISMS
Dr. Extavour is a geneticist who studies evolutionary and developmental genetics. She uses a numb

GENETICS
Dr. Extavour is a geneticist who studies evolutionary and developmental genetics. She uses a numb

NATURAL SELECTION
Dr. Extavour is a geneticist who studies evolutionary and developmental genetics. She uses a numb

GERM CELLS
Dr. Extavour is a geneticist who studies evolutionary and developmental genetics. She uses a numb

CELL COMPETITION
Dr. Extavour is a geneticist who studies evolutionary and developmental genetics. She uses a numb

Discussion Questions

  1. Why do cells compete?


Additional Resources

  1. [VIDEO] Infectious Diseases - An Introduction
    https://www.youtube.com/watch?v=9axOFtPqS0c
    Quick summary of what infectious diseases are and their impact on society.

  2. [VIDEO] What is a virus? How do viruses work?
    https://www.youtube.com/watch?v=7KXHwhTghWI
    Brief overview of what viruses are and how they work.

  3. [CURRICULA] World of Viruses
    http://worldofviruses.unl.edu/category/curricula/?activity=Classroom%20Activities
    Collection of classroom activities related to microbes and viruses for different age groups.

  4. [LESSON PLAN] Viral Hijackers
    https://www.teachengineering.org/lessons/view/duk_virus_mary_less
    Lesson on infectious disease, cells, and viruses created by Duke University.

  5. [TED TALK] How We’ll Fight the Next Deadly Virus
    https://www.youtube.com/watch?v=G8RxjxdUulE
    Dr. Pardis Sabeti speaks on her experience fighting Ebola and what’s next in fighting infectious disease.

  6. [VIDEO] Pardis Sabeti on “Can Math Beat Disease?”
    https://www.youtube.com/watch?v=5uT1zKm46jo
    Dr. Sabeti breaks down her work and her statistical approach to science and problem solving.

 
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