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DNA Microarrays

DNA Microarrays

Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...

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Updated: Jul 18, 2026

DNA Microarrays: Sample Quality Control, Array Hybridization and Scanning

DNA Microarrays: Sample Quality Control, Array Hybridization and Scanning

Published on: March 15, 2011

DNA microarray wet lab simulation brings genomics into the high school curriculum.

A Malcolm Campbell¹, Carolyn A Zanta, Laurie J Heyer

¹Departments of Biology, Davidson College, Davidson, NC 28035-7118, USA. macampbell@davidson.edu

CBE Life Sciences Education

|December 6, 2006

Summary

This study introduces a pH indicator-based DNA microarray simulation for high school students. The accessible and inexpensive simulation demonstrated significant student learning gains and popularity among educators.

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Area of Science:

Biotechnology Education
Molecular Biology Techniques

Background:

Traditional DNA microarray labs are often inaccessible to high school students due to cost and equipment requirements.
There is a need for simplified, engaging laboratory modules to teach molecular biology concepts.

Purpose of the Study:

To develop and evaluate a wet lab DNA microarray simulation module for high school students.
To provide an accessible, inexpensive, and effective alternative to traditional DNA microarray experiments.

Main Methods:

Developed a wet lab simulation using pH indicators instead of DNA.
Field tested the simulation with high school students in Illinois and Maryland.
Conducted workshops for high school teachers nationwide to assess the simulation's applicability.

Main Results:

The pH indicator simulation requires no specialized equipment, is inexpensive, reliable, and requires minimal preparation.
Student and teacher assessments indicated high popularity and significant learning gains for students.
Teachers reported the simulation's potential applicability in community college and introductory college biology courses.

Conclusions:

The pH indicator-based DNA microarray simulation is a viable and effective educational tool for high school biology.
The simulation addresses accessibility and cost barriers associated with traditional molecular biology laboratory exercises.
The module offers a scalable solution for teaching DNA microarray principles across various educational levels.