The Inheritance of Variation

Authors

• Don Lee, University of Nebraska-LincolnFollow

Document Type

Learning Object

Date of this Version

2003

Citation

Plant and Soil Sciences eLibrary (PASSeL) Lesson

Comments

Published 2003, Don Lee. Used by permission.

Development of this lesson was supported in part by Cooperative State Research, Education, & Extension Service, U.S. Dept. of Agriculture under Agreement Number 98-EATP-1-0403 administered by Cornell University and the American Distance Education Consortium (ADEC). Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author and do not necessarily reflect the view of the U.S. Department of Agriculture.

Abstract

An introduction to genetic inheritance, including the principles of segregation and dominance.

Learning Objectives

At the completion of this lesson you should be able to:

1. Define the following terms: truebreeding, M1, M2, M3, F1, F2, F3, gamete, gene, gene pairs, allele, genotype, phenotype, monohybrid cross, heterozygous, and homozygous.
2. Apply the principles of segregation and dominance to explain the inheritance of traits that are carefully monitored in a classical genetics experiment.
3. Explain why planting seeds in progeny rows helps a geneticist determine the genotype of parents.

Modules:

1. Overview
2. Learning Objectives
3. Introduction – The Inheritance of Variation
4. Experiment Outline
5. Explanations
6. Experiment Summary Statements
7. The Monohybrid Cross Experiments of Dr. James Specht
8. Monohybrid Cross Experiment Outline
9. Monohybrid Cross Experiment Data
10. The Principle of Segregation
11. Using Punnett Squares to Prove Segregation
12. A Common Pattern
13. Summary