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學(xué) ............在分子水平上探討高等有機(jī)體的生命活動(dòng),細(xì)胞生物學(xué)則是分子生物學(xué)的一個(gè)必然的發(fā)展方向。因此可以說,細(xì)胞生物學(xué)是細(xì)胞學(xué)與分子生物學(xué)匯集的領(lǐng)域 研究的主要內(nèi)容 A 細(xì)胞核、染色體以及基因表達(dá)的研究 B 生物膜與細(xì)胞器的研究 C 細(xì)胞骨架體系的研究 D 細(xì)胞增殖及其調(diào)控 E 細(xì)胞分化及其調(diào)控 F 細(xì)胞的衰老與凋亡 G 細(xì)胞工程 H 細(xì)胞的起源與進(jìn)化 Study object of molecular cell biology A 細(xì)胞核、染色體以及基因表達(dá)的研究 Normal male, XY a precise nuclear positioning of chromosomes during prometaphase in human fibroblast cells. 45S和 5S rDNA在栽培玉米和大芻草染色體上的定位 ?B 生物膜與細(xì)胞器的研究 Fluid Mosaic Membrane C 細(xì)胞骨架體系的研究 Cellular distribution of intermediate filaments and microtubules is similar D 細(xì)胞增殖及其調(diào)控 尋找控制細(xì)胞增殖的因子以及關(guān)鍵的控制基因 The LINKS and CONTROLS between the INITIATION of the CELL CYCLE the INITIATION of APOPTOSIS Cycle controlled like a washer ? Timing mechanism ? Checkpoints ? Certain internal and external conditions must be met ? Control highly conserved Cancer is the Cell Cycle gone awry Divide indefinitely Normal checkpoints ignored Associated with mutations in genes that control cell