10.1 Study Guide Flashcards
What happens in the G1 phase of the cell cycle?
Newly divided cell increases its size and prepares to replicate DNA.
What happens in the S phase?
Cell replicates DNA into 2 sets of chromosomes.
What are the 3 main things that can happen to a cell after the cell cycle completes?
Divide, Differentiate, Die.
What are some examples of Cell Cycle inhibitory proteins?
p53, Rb, ATM, BRCA1, and MAD.
What happens in the G0 phase?
The cell stops the Cell Cycle, can be permanent or temporary.
What is the definition of Differentiate?
The cell stops dividing so it can specialize.
What to stimulating proteins do?
Speed up the cell cycle.
How do mutations in proto-oncogenes and tumor suppressor genes lead to cancer.
Mutations in these genes speed up the cell cycle (oncogene mutation) and cause a loss of inhibition (tumor suppressor genes mutation).
