Making Quantitative Genetics Relevant - Effectiveness of a Laboratory Investigation that Links Scientific Research, Commercial Applications, and Legal Issues

Oct 15, 2026

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As students apply scientific concepts and science inquiry methods, learning becomes meaningful when connected to authentic contexts. This laboratory exercise builds understanding of quantitative trait genetics and the nature of science by embedding analysis in a real-world business dispute. Students assess whether a sunflower seed producer’s patent rights were infringed by a rival by working in teams to collect, analyze, and statistically evaluate data, then draw conclusions on possible violations.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages5

Reading Time13 min

AccessFree to download

Abstract

Introduction

Real-world activities and meaningful learning

Course objectives and laboratory design

Background (Pre-Lab Discussion)

Mendelian vs. biometrical viewpoints

Polygenic inheritance and quantitative phenotypes

Commercialization and patent law context

Describing Phenotypic Variation

Making Quantitative Genetics Relevant: Effectiveness of a Laboratory Investigation that Links Scientific Research, Commercial Applications, and Legal Issues Michael L. Rutledge, Philip M. Mathis, and Rebecca L. Seipelt Department of Biology Middle Tennessee State University Murfreesboro, TN 37132 [e-mail: mrutledg@mtsu.edu](e-mail: mrutledg@mtsu.edu) ABSTRACT: As students apply their knowledge of scientific concepts and of science as a method of inquiry, learning becomes relevant. This laboratory exercise is designed to foster students’understanding of the genetics of quantitative traits and of the nature of science as a method of inquiry by engaging them in a real-world business scenario. During the investigation, students explore the question of whether the patent rights of a commercial producer of sunflower seeds have been infringed upon by a rival company. Students work as a research team to explore the question, making observations, collecting and analyzing data utilizing statistical tools, and ultimately drawing conclusions regarding possible patent violations. Student-evaluations of the exercise indicate that they perceive that the activity fostered their understanding of genetic principles and of important aspects of scientific inquiry and made the content relevant by linking it to real-world issues. KEYWORDS: genetics, relevant content, statistics, t-test, patent rights, quantitative traits INTRODUCTION The use of real-world, student-relevant activities, assignments and curricula that invoke students’ critical thinking skills is recognized as a powerful approach to engage students and promote meaningful learning (Biack and Biack, 1999; Chin and Brown, 2000; Crow, 1989; van Rooyen & de Beer, 1994) . Such activities allow students to apply their understanding of scientific principles and science as a method of inquiry. These applications are vital because they foster the formation of informed decisions, and make learning meaningful (Chang, 2000; Sojka, 1992; Demers, 2003) . The connections between scientific research and commercial ventures that have associated legal issues provide a rich area from which to develop activities that are relevant to students’ lives and promote critical thinking. An objective of the genetics course at Middle Tennessee State University is to foster student understanding of genetic principles and scientific methods while encouraging students to critically apply their knowledge to answer relevant personal and societal questions. This paper describes a laboratory investigation that utilizes a real-world business scenario involving potential patent right infringements with respect to sunflower seeds. The laboratory is designed to: • promote student understanding of quantitative traits. • foster student understanding of science as a method of inquiry, including the analysis of data using statistical procedures. • introduce students to the connections between scientific research and commercial applications, including legal issues associated with the patenting of organisms. • provide course content that is interesting and relevant to students’ everyday lives. As students investigate questions concerning potential patent right infringements, they utilize the tools and techniques commonly used in scientific decision-making -- characteristics recognized as fundamental to quality science education (American Association for the Advancement of Science, 1993; National Research Council, 1996; National Science Foundation, 1996) . BACKGROUND (PRE-LAB DISCUSSION) The laboratory exercise is prefaced with a discussion reminding students of the historic events leading to the contemporary understanding of heredity—including the ‘Mendelian viewpoint,’ which held that all evolutionarily important genetic differences are qualitative and discontinuous, and the‘biometrical viewpoint,’ which held that genetic variation is fundamentally quantitative and continuous. The multiple gene h

FAQs

What is the purpose of this quantitative genetics laboratory exercise?

It aims to help students understand quantitative trait genetics and the nature of science through a real-world business scenario involving potential patent-right infringement.

How do students evaluate the patent infringement question?

Students work as a team to collect and analyze data using statistical tools and then draw conclusions about possible patent violations.

What background concepts are provided before the lab?

The pre-lab discussion covers heredity viewpoints (Mendelian vs. biometrical), polygenic inheritance, why quantitative traits can be expressed numerically, and the role of patent law in genetic commercialization.

Oct 15, 2026

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