Science Olympiad

Heredity

Welcome to Heredity! In this event, teams will answer questions, solve problems, and analyze data pertaining to classic and molecular genetics.

The information below should not be interpreted as an extension of the rules. You can find free online copies of the current rules for download on the 2027 Rules page of the Science Olympiad website. The official rules in the current Rules Manual take precedence.

Resources and Links

Current Season Resources
- Heredity Presentation
  - PDF
- Introduction and Learning Objectives
- Heredity Sample Activities
  - PDF
- Heredity Sample Tournament
  - PDF
- Event Supervisor Guide
- How to Solve Genetic Problems - 1
- How to Solve Genetic Problems - 2
- Hints on Solving Pedigree Problems
- Practice Problems in Genetics with Solutions
- Khan Academy
  - Classical & Molecular Genetics
  - Introduction to Heredity
- Genetics Society of America - Educational Resources
- Open Textbook Library - Introduction to Genetics
Previous Seasons Resources
- Practice Activities
- Sample Tournament
- How to Solve Genetics Problems
  - Part 1
  - Part 2
- Hints on How to Solve Pedigree Problems
- Practice Activities with Answers
- The New Genetics Textbook
- The Principles of Genetics Textbook
- 2020 Internet Resources for Heredity - Verified Resource
- Tips for Solving Genetics Problems
- Practice Activities with Answers

Science Olympiad Store Materials

New - Heredity Starter Pack

Practice Problems & Tests

Practice Test - 2026 BullSO Invitational
Practice Test - 2026 Berkeley Invitational
Practice Test - 2026 Pembroke Hill Invitational
Sample Heredity Tournament
2020 Heredity Sample Test
- Exam
- Answer Key

Event Supervisor Resources

In addition to the resources on the Event Supervisors page, Heredity Event Supervisors should be sure to use the following resources:

New - '27 Event Supervisor Guide

Career Connections

Science Olympiad Sponsors