11
Lesson 11 of 84 · Genetics
ExperimentDarwin and the Galapagos
What You'll Learn
Charles Darwin observed that finches on different Galapagos Islands had different beak shapes suited to their food sources. This helped him develop the theory of natural selection.
Key Words
- recessive
- mutation
Materials Needed
- markers
- ruler
- scissors
- microscope (or magnifying glass)
Safety First
- Protect your work surface with newspaper or plastic.
- Adult supervision recommended.
- Do not taste any materials.
Steps
Step 1 — Read
Read about Genetics and write down three key facts.
Step 2 — Do
Model mitosis using pipe cleaners as chromosomes. Show each phase: prophase, metaphase, anaphase, and telophase.
Step 3 — Observe
Look for patterns in your observations.
Step 4 — Record
Make a graph or chart showing your results.
Check Your Understanding
Question 1
1 of 3Who is known for the theory of natural selection?