Across
- 2. substance that produces or promotes the development of cancer
- 4. First phase of mitosis; Chromosomes condense
- 6. The region at the tip of a chromosome
- 8. Third phase of mitosis; chromatids separate, pulled to opposite sides
Down
- 1. Type of protein molecule found in the chromosomes of eukaryotic cells but not prokaryotic cells
- 2. the substance that composes eukaryotic chromosomes;contains specific proteins DNA and small amounts of RNA
- 3. one of the two strands of a chromosome that become visible during meiosis or mitosis
- 5. The life _____ of a cell
- 7. Having no serious effect on heath
- 9. Programmed cell death