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.
Cabbage and Chinese cabbage (Brassica rapa, Pekinensis Group) are cool-season vegetables that should be grown in early spring or fall. They grow best at temperatures of 60 to 65 Â°F.Chinese cabbage forms dense heads that may be very upright and tall (Michihili types) or round and barrel-shaped (Napa types). The leaves are slightly wrinkled and thinner than the leaves of regular cabbage with wide, crisp midribs.abbage and Chinese cabbage (Brassica rapa, Pekinensis Group) are cool-season vegetables that should be grown in early spring or fall. They grow best at temperatures of 60 to 65 Â°F. Chinese cabbage forms dense heads that may be very upright and tall (Michihili types) or round and barrel-shaped (Napa types).