7.1 SG Flashcards
(14 cards)
interphase
G1, S, G2
cell division
M
G1
cell grows and prepares for DNA duplication
S
DNA is copied and duplicated
G2
cell grows and prepares for division
M
cell division and cytokinesis occur
G0
differentiation, cell death
checkpoints
checks to make sure cells are prepared to go into the next phase, checks for damage to the DNA
Stimulators
accelerators, allow cells to move to the next phase
inhibitors
brakes, stop cells from moving to the next phase if there id something wrong
oncogenes
mutated stimulatory genes, accelerates cell cycle, dominant
mutated tumor suppressor genes
mutated inhibitory genes, don’t stop cell cycle even if there is a problem, recessive
proto-oncogenes
stimulatory genes that allow the cell cycle to advance
tumor suppressor genes
inhibitory genes that stop the cell cycle if a problem is detected