Why do genetic mutations lead to cancer?
A. The mutated DNA multiplies out of control, overwhelming the cell and killing it. B. Proteins produced by the mutated genes produce toxins, which kill surrounding cells. C. The mutated genes bind to cellular receptors, causing them to signal the cell to divide. D. Mutated genes produce non-functional proteins that cannot regulate the cell cycle properly. 8. Which of the following happens during anaphase? Chromosomes a. Condense b. Uncondense and the nucleus reforms c. Line up in the middle of the cell d. Are pulled apart into 2 chromosomes 9. When is DNA polymerase active in the cell cycle? a. Anaphase b. Gap phase c. S-phase d. Prophase 10. Which of the following is a role of proteins in regulating the cell cycle? a. They act as receptors for growth factors. b. They repair damaged DNA. c. They can cause the cell to kill itself. d. All of the above are possible roles. 11. What is the most basic cause of cancer? a. genetic mutation b. tumors c. damage to cell membranes d. excessive bl
