Proto-oncogenes push the cell forward through the cell cycle, and tumor-suppressor genes put the brakes on the cell cycle, so to speak, when the cell isn't yet ready to divide.Mutations in either of these types of genes can lead to cancer, which is uncontrolled cell division.roto-oncogenes push the cell forward through the cell cycle, and tumor-suppressor genes put the brakes on the cell cycle, so to speak, when the cell isn't yet ready to divide.
Definition of cabbage. 1a : any of several brassicas (Brassica oleracea) of European origin; especially : a leafy garden plant (Brassica oleracea capitata) with a short stem and a dense globular head of usually green leaves that is used as a vegetableb : any of several plants related to or resembling cabbage.
How does cabbage grow? More specifically, how does it add leaves? A cabbage is composed of many layers of leaves, but as a cabbage grows how are more added? A cabbage has a characteristic rosette morphology, which means that it has a large amount of leaves very close together and very close to the ground that ultimately form from the stem.