Across
- 4. a threadlike structure of nuclei acids and proteins
- 8. a substance produced to bring out a biochemical reaction
- 9. one of four constituent bases of nuclei acid
- 10. a type of fat
Down
- 1. molecules composed of amino acids
- 2. the central and most important part of the cell
- 3. the circle of the DNA procedures
- 5. a messenger carrying instructions from DNA
- 6. the division of cells
- 7. a self replicating material