Lesson Three

What is selective breeding?


Selective breeding is not a new phenomenon. Humans have been trying to systematically improve their food supply for at least 10,000 years through food biotechnology.

Length: 1 hour

Students will be able to:

  • Define selective breeding.
  • Describe how selective breeding changes a population over time.

Next Generation Science Standards Addressed

Disciplinary Core Ideas:

  1. LS3.A Inheritance of Traits
  2. LS3.B Variation of Traits

Developing and Using Models

Cross-Cutting Concepts:
Cause and Effect: Cause and effect relationships may be used to predict phenomena in natural systems.

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Backcross Breeding

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This lesson is a detailed explanation of the backcross breeding process. Variations based on whether backcrossing is performed with dominant, recessive, or multiple traits are discussed. Calculations associated with backcross breeding are explained.

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Marker Assisted Selection

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Marker-assisted selection minimizes the hefty “wait and see” period in traditional plant breeding.

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