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.
Description. Image. Healthy Cabbage plant. 1. The cabbage seeds have only just been planted, the cabbages are small and bright green. 2. The cabbages are much larger, with more leaves surrounding the head. 3. The cabbages are larger than before, and textures of leaves are now easily observable.4. The cabbage head has swollen larger, and the surrounding leaves are more close to the ground. 5. The cabbage plants are ready to harvest.he cabbages are much larger, with more leaves surrounding the head. 3. The cabbages are larger than before, and textures of leaves are now easily observable. 4. The cabbage head has swollen larger, and the surrounding leaves are more close to the ground. 5. The cabbage plants are ready to harvest.