Across
- 1. A chain made from building blocks.
- 3. One side of the DNA ladder.
- 7. The order of letters or things.
- 8. A part of DNA with trait information.
- 10. The way letters are placed.
- 12. One DNA letter: A, T, C, or G.
- 13. All the DNA letters make this.
- 14. One step across the DNA ladder.
- 15. A living thing with a body and organs.
Down
- 2. To show or make something seen.
- 4. Two sides twist like a ladder.
- 5. The material that holds instructions for life.
- 6. A small unit of living things.
- 9. A feature of a living thing.
- 11. A tiny living thing. Many kinds have DNA.