Cold Spring Harbor Laboratory
Dna From the Beginning: Specialized Chromosomes Determine Gender
This animation explains how Nettie Stevens research on meal worms unlocked the chromosomal basis of gender.
Texas Education Agency
Texas Gateway: Mechanisms of Genetics: Dna Changes
Given illustrations or partial DNA sequences, students will identify changes in DNA and the significance of these changes.
PBS
Pbs Learning Media: Journey Into Dna
Travel deep into the human body to see exactly where your DNA resides. From the NOVA: Cracking the Code of Life Web site.
PBS
Pbs Teachers: Cracking the Code: Explore a Stretch of Code
Investigate the makeup and function of genes and genetic code by exploring an actual stretch of human DNA in this activity.
Concord Consortium
Concord Consortium: Gene Environment Interaction: Food and Sand Rat Health
Students explore the effect of both genes and environment on the health of sand rats, a model for studying diabetes in humans.
Cold Spring Harbor Laboratory
Dna From the Beginning: Mutations Are Changes in Genetic Information
This article explains how and why mutations are so important to genetics.
BiologyWise
Biology Wise: Chromosomes: The Carriers of Genetic Information
Explains what chromosomes are, their structure, their functions within a cell, and the health impact of mutations in a gene sequence.