What is Directional Selection? - Examples, Definition & Graph


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question 1 of 3

Which of the following is NOT an example of directional selection?

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1. Which of the following is an example of directional selection?

2. Selective pressure does NOT result in:

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About This Quiz & Worksheet

This worksheet and quiz are to assess your understanding of basic ideas that underlie directional selection. You should be familiar with the concept of directional selection and selective pressure in order to take this quiz.

Quiz & Worksheet Goals

The printable worksheet can be used to review:

  • The definition of directional selection
  • Examples of directional selection
  • Concepts regarding selective pressure
  • The definition of phenotype

Skills Practiced

  • Information recall - access knowledge you gained in regard to possible results of selective pressure
  • Knowledge application - use your knowledge to answer questions about how directional selection is exhibited in certain animals
  • Interpreting information - verify that you can read information concerning selective pressure and interpret it correctly

Additional Learning

To learn more about the concept of directional selection, read through the corresponding lesson called What is Directional Selection? - Examples, Definition, & Graph. Some of the objectives of this lesson are:

  • Understand one of several types of natural selection
  • Define fitness in terms of natural selection and evolution
  • Identify possible selective pressures in giraffes and moths