Using Blood Tests to Identify Babies and Criminals
In this activity, Using Blood Tests to Identify Babies and Criminals, students learn the genetics and immunobiology of the ABO blood type system and use simple chemicals and logical reasoning to solve a murder mystery and to determine whether two babies were switched in the hospital. This activity introduces students to the concept of codominance; in the Teacher Preparation Notes we suggest an extension which you can use to introduce the concept of incomplete dominance and the difference between codominance vs. incomplete dominance.
We invite comments on this Hands-On Activity and the accompanying Teacher Preparation Notes, including suggestions for other teachers who are planning to use the activity, useful preparatory or follow-up activities, additional resources or any questions you have related to the activity, or a brief description of any problem you might have encountered. If you have a relevant Word document you would like to have posted on this comments page, such as a version of the protocol you have used in your classroom, or if you would prefer to send your comments or questions in a private message, please write Ingrid Waldron at email@example.com.
See also a complete list of activities:
Hands-on Activities for Teaching Biology to High School and Middle School Students