Across
- 4. the first step of mitosis
- 5. a set of ideas to explain something in science
- 7. tightly coiled DNA kept in the nucleus
- 9. the organelle where proteins are assembled
- 10. the step of mitosis where chromosomes line up
- 11. amino acids combine to make this
- 12. where cellular respiration occurs
- 13. the unit of heredity passed from parent to offspring
- 14. ATP is used for _ in chemical reactions
- 16. an allele that will overpower the other
- 17. where photosynthesis occurs
Down
- 1. the physical appearance of a trait
- 2. the diffusion of water through a membrane
- 3. the process of making an mRNA copy of DNA
- 5. the process of using mRNA to construct a protein
- 6. one of the different forms of a gene
- 8. a cell that contains a nucleus
- 12. surrounds all cells
- 15. this makes up the main structure of the membrane