10.1 Flashcards
What is the order of phases in cell division?
Gap 1, Synthesis, Gap 2, Mitosis
What happens in Interphase?
Cells grow and prepare for division (G1, S, G2)
What are stimulatory proteins?
Proteins that signal for cells to continue the cell cycle and allow cell division to occur.
What are inhibitory proteins?
Proteins that limit cell division to make sure there are no mistakes in DNA and that cells don’t get out of control.
Why do mutations in proto-oncogenes cause cancer?
If a proto-oncogene mutates, it becomes an oncogene and it can cause cells to divide quickly and out of control.
Why do mutations in tumor suppressor genes cause cancer?
Tumor suppressor genes prevent cells with genetic errors from multiplying, so if the genes mutate, then the cells with errors will divide out of control, causing cancer.
