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.
Types of Cabbage. Types of Cabbage. Green Cabbage: the most common variety; is pale green in colour with tightly compacted leaves. Red Cabbage: this dark purple red cabbage is similar in taste to the green cabbage but with coarser leaves. Bok Choy: A Chinese cabbage with dark green leaves and white stems.