Lesson 69 of 84 · Cells
Lesson⭐ 30 XP🌿 Wild JunglePunnett Squares: Predicting Traits (Part 4)
Punnett Squares: Predicting Traits (Part 4).
🎯 Your mission
Understand the idea. Then look for it everywhere.
⚡ The twist
Every species solves the same problem differently.
Mind = Blown
🐙 An octopus has 9 brains and 3 hearts.
Make a hypothesis first
Before you watch: what do you think it'll do?
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
Steps
Look at the vocabulary words and write a definition for each in your own words.
Survey your class for a genetic trait (attached vs. free earlobes, tongue rolling, hitchhiker's thumb). Create a bar graph of the results.
Draw a detailed diagram of what you observe.
Write a conclusion: what did your results show? Did they match your prediction?
Check Your Understanding
Question 1
1 of 3What is a Punnett square used for?
Where you see this in real life
Your own body is doing this thousands of times every second.
Stretch Challenge
Try this in real life this week.
Find one thing about your body that's different from a friend's. Wonder why.
For the dinner table
“Tell me something you noticed about your own body today.”
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
Checkout complete lesson on Cells for 6th Grade
Get the full Cells track as a printable PDF — all lessons, worksheets, and answer keys.