Questions for group discussion:
INSTRUCTIONS
Explain why the replication of one of the DNA strands is continuous while the other strand is discontinuous. What causes this difference?
- A) What are telomeres? B) Are telomeres present in both Prokaryotes and Eukaryotes? C) Explain why some cells have telomeres and others don't (base your explanation on the structure of the DNA molecule and the directionality of polymerases).
A) Assuming the life of a cell starts as soon as cell division is completed and ends when the cell starts a new process of cellular division, how many times in a cell’s life does it replicate its DNA? Explain. B) How is DNA replication related to mitosis? C) When does a multicellular organism undergo mitosis (when it wants to reproduce, all the time, only when injured, when it’s growing, or when)?
INSTRUCTIONS
Discuss A) why cell division requires multiple checkpoints and B) what is the role of proto-oncogenes and tumor suppressor genes in normal cells and C) how are proto-oncogenes and tumor suppressor genes related to cancer??