6. In the time span of 10 years every cell in your adult body goes through the cell cycle. {Ans: 6. FALSE}12. At these checkpoints, a cyclin works with a cyclin-dependent kinase (i.e., Cdk) to regulate the checkpoint. {Ans: 12. TRUE}4. List the three categories of cells in the body with regard to the cell cycle. {Ans: 4. G1 phase, S phase, G2 phase}10. Cytoplasmic signal transduction controls the checkpoints of the cell cycle. {Ans: 10. TRUE}3. An important checkpoint regulator is at the Gap2/M-phase transition. Here cyclin B and Cdk1 activate and form MPF which becomes a _________ _________ (two words) and causes the DNA to condense into _________. {Ans: 3. phosphorelating histones????, chromosomes}8. Many chemotherapy drugs act by arresting the cell in M-phase of the cell cycle. {Ans: 8. TRUE}