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Across 1. stage from the completion of DNA replication to the onset of mitosis( makes proteins that form microtubules) 5. any cell of a living organism other than the reproductive cells 6. two identical chromatids 9. Double Helix 10. responsible for interpreting growth signals and nutrient signals 11. division of cytoplasm 12. when DNA synthesis or replication occurs 14. nuclear division 15. stops the cycle at the G1 when the DNA is damaged.

Down 1. are signaling proteins received at the plasma membrane. 2. Two daughter nuclei 3. Varies Widely: the time when a cell performs its usual function 4. Stage before the DNA Replication 7. Programmed cell death 8. family of internal signaling proteins 13. agent that influences the activities of a cell