Across
- 5. guessing what happens next
- 6. factor that can be changed in an experiment
- 8. basic unit of inheritance
- 10. passing traits from parents to offspring
- 12. starting substances in a chemical reaction
- 13. the presence of a single set of chromosomes in an organism's cells
- 14. anything with mass and takes up space
- 16. threadlike structures made of protein and a single molecule of DNA
Down
- 1. when protein is made from RNA
- 2. cell copying DNA
- 3. when a cell makes a copy of RNA from DNA
- 4. different forms of a gene
- 7. exploration natural events through experiments
- 9. study of genes and heredity: study of genes and heredity
- 11. genetic variant of a characteristic
- 15. cell divides to reduce the number of chromosomes