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Lesson 81 of 84 · Evolution
ExperimentMitosis: How Cells Divide (Part 5)
What You'll Learn
Chromosomes are structures made of tightly coiled DNA and proteins. Human body cells have 46 chromosomes (23 pairs), while sex cells have 23 chromosomes.
Key Words
- gene
- chromosome
- mitosis
Materials Needed
- paper
- colored pencils
- coins (for Punnett squares)
- tape
- index cards
- markers
Safety First
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
Steps
Step 1 — Read
Read and learn: Chromosomes are structures made of tightly coiled DNA and proteins. Human body cells have 46 chromosomes (23 pairs), while sex cells have 23 chromosomes.
Step 2 — Do
Create a labeled diagram of what you built or observed.
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 mitosis?