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Lesson 31 of 84 · Heredity
ExperimentPunnett Squares: Predicting Traits (Part 2)
What You'll Learn
Punnett squares are tools for predicting the probability of offspring inheriting particular traits. They show all possible combinations of alleles from two parents.
Key Words
- recessive
- mutation
- natural selection
Materials Needed
- paper
- colored pencils
- coins (for Punnett squares)
- tape
- index cards
Safety First
- Do not look directly at the sun or bright lights.
- Clean up spills immediately to prevent slipping.
- Use materials only as directed in the experiment.
Steps
Step 1 — Read
Read and learn: Punnett squares are tools for predicting the probability of offspring inheriting particular traits. They show all possible combinations of alleles from two parents.
Step 2 — Do
Conduct the experiment by following the instructions.
Step 3 — Observe
Draw a picture of what you observe.
Step 4 — Record
Answer the questions based on your data.
Check Your Understanding
Question 1
1 of 3What is a Punnett square used for?