Curated OER
Teacher Preparation Notes on Genetics
Students explore genetics through various hands-on activities. In this biology lesson, students predict the probability of offspring genotypes and phenotypes using the Punnett Square. They explain the causes of genetic abnormalities.
Curated OER
Patterns of Heredity
Students describe the differences between incomplete dominance and codominant alleles, and between multiple alleles and polygenic inheritance. They describe how internal and external environments affect gene expression. They then...
National Center for Case Study Teaching in Science
In Sickness and in Health
Based on family history, how likely is it that a couple's children will have a recessive disease? In an in-depth, but easy-to-follow case study, future geneticists learn the story of Greg and Olga, who are hoping to have children, but...
Curated OER
Extracting DNA from Your Cells - Teacher Preparation Notes
Learners extract their own DNA from cheek cells. In this biology instructional activity, students explain the replication process. They identify the structure and composition of DNA.