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Lesson 31 of 84 · Genetics
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
- mutation
- natural selection
Materials Needed
- onion skin
- iodine stain
- paper
- colored pencils
- coins (for Punnett squares)
Safety First
- Dispose of materials properly after the experiment.
- Handle glass items carefully to avoid breakage.
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?