cellmembrane中文___activetransport中文___ionchannel中文___nucleus中文___chromosome中文___chromatin中文___euchromatin中文___nuclearpore中文___nucleolus中文___endomembranesystem中文___
cellmembrane中文___activetransport中文___ionchannel中文___nucleus中文___chromosome中文___chromatin中文___euchromatin中文___nuclearpore中文___nucleolus中文___endomembranesystem中文___
In gene therapy, vector–chromatin interaction and its consequences have become more unpredictable, but vector-induced leukemogenesis remains an predictable factor in gene therapy due to its multifactorial nature.
In gene therapy, vector–chromatin interaction and its consequences have become more unpredictable, but vector-induced leukemogenesis remains an predictable factor in gene therapy due to its multifactorial nature.
用非特异性微球菌核酸酶处理chromatin,产生的DNA片段长度约为 A: 随机长度 B: 200 bp C: 166 bp D: 146 bp
用非特异性微球菌核酸酶处理chromatin,产生的DNA片段长度约为 A: 随机长度 B: 200 bp C: 166 bp D: 146 bp
Telophase begins when( ). A: chromatids line up in the middle of the cell B: the nuclear envelope breaks down C: chromatin condenses D: daughter chromosomes arrive at opposite poles of the cell E: centrioles reach opposite poles of the cell
Telophase begins when( ). A: chromatids line up in the middle of the cell B: the nuclear envelope breaks down C: chromatin condenses D: daughter chromosomes arrive at opposite poles of the cell E: centrioles reach opposite poles of the cell
Found in the chromatin of all eukaryotic cells, histones have molecular weights between 11,000 and 21,000 and are very rich in the basic amino acids arginine and lysine which together make up about _____ of all the amino acid residues. A: 1/6 B: 1/5 C: 1/4 D: 1/3
Found in the chromatin of all eukaryotic cells, histones have molecular weights between 11,000 and 21,000 and are very rich in the basic amino acids arginine and lysine which together make up about _____ of all the amino acid residues. A: 1/6 B: 1/5 C: 1/4 D: 1/3
下列哪些描述不是转录激活因子促进转录的机制（ ） A: 转录激活因子可以直接或者间接通过中介子与通用因子相互作用，帮助将通用因子和RNA聚合酶复合体招募到核心启动子 B: 招募组蛋白乙酰转移酶(Histone acetyl transferase), 解开染色质结构 C: 招募染色质重塑复合物 (Chromatin remodeling complexes) D: 招募组蛋白脱乙酰基酶 （Histone deacetylases）
下列哪些描述不是转录激活因子促进转录的机制（ ） A: 转录激活因子可以直接或者间接通过中介子与通用因子相互作用，帮助将通用因子和RNA聚合酶复合体招募到核心启动子 B: 招募组蛋白乙酰转移酶(Histone acetyl transferase), 解开染色质结构 C: 招募染色质重塑复合物 (Chromatin remodeling complexes) D: 招募组蛋白脱乙酰基酶 （Histone deacetylases）