Cell (nucleus) is totipotent, which can create a new organism of the same type 取出A 细胞,体外培养 使之 处于静息期 取出B羊的卵细胞 并除去细胞核 培养皿中取出 其中一个细胞的 细胞核 将乳腺细胞的核 注入去核的卵细胞中重组卵细胞体外培养 植入C羊的子宫内“多莉”羊 B
Cell (nucleus) is totipotent, which can create a new organism of the same type
F Living things adapt to their environment Fish Salamander Turtle chicken Rabbit Human 893 ti 88
E. Living things adapt to their environment
Overview of the birth. lineage, and death of cells Cell growth Symmetric division Cell birth Cell growth Asymmetric Cell division death Cell lineage
Overview of the birth, lineage, and death of cells
2. Regulation of cell activity A. Control of cell growth and cell division EXTRACELLULAR FACTOR GROWTH FACTORMITOGEN CELL GROWTH CELL DIVISION CELL GROWTH CELL DIVISION EXTRACELLULAR FACTOR CELL GROWTH CELL DIVISION
2.Regulation of cell activity A. Control of cell growth and cell division
B. Signal pathway in cell life regulation growth factor growth factor receptor PI3-kinase protein kinase activation actIV active eIF4E phosphorylated S6 kinase increased mRNA translation ↓ STIMULATION OF CELL GROWTH Growth factors promote cell growth
B. Signal pathway in cell life regulation Growth factors promote cell growth