Agronomy and Horticulture, Department of

 

Plant and Soil Sciences eLibrary

Resistance Genetics: Genotypic Inheritance and Connection to Phenotype

Document Type

Learning Object

Date of this Version

11-2025

Citation

Plant and Soil Sciences eLibrary (PASSeL) Lessons.

Comments

 

Abstract

Overview

Overuse and reliance on pesticides to control agricultural pests has caused pest populations to evolve due to the application of artificial selection. Individuals with a higher tolerance for pesticides survive to reproduce – increasing resistant individuals that will eventually outnumber the ones that are controllable.

Resistance Genetics is a set of 4 lessons that teach about the genetic basis of pesticide resistance. These lessons can be used together or as separate lessons.

  1. Trait Expression
  2. Genotypic Inheritance and Connection to Phenotype
  3. Origin of Resistant Alleles
  4. Selecting Genes for Resistance – Evolution of Resistance to Pesticides in Populations

This lesson is the Genotypic Inheritance and Connection to Phenotype lesson.

The first Resistance Genetics lesson on Trait Expression described how genes are expressed by providing the cell protein coding instructions. This Resistance Genetics lesson on Genotype and Phenotype will focus on the inheritance of genes and explain the occurrence of phenotype variation in families.

Learning Objectives

After completing this section students should be able to:

  1. Determine the relationship between genotype, phenotype, and environment,
  2. Differentiate multi-gene or polygenic traits,
  3. Predict the inheritance of genes in family genetics,
  4. Use Punnett squares to explain the inheritance of genes in families,
  5. Determine parent genotypes based on phenotype data collected from families.

Modules

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