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端粒是位于染色体末段的一种特殊结构 ,具有维持染色体稳定的功能。不同的细胞 ,同一细胞的不同染色体具有不同的端粒长度 ;端粒长度是由基因控制的 ,并受到各种外界因素的影响 ;端粒长度随细胞的增殖与分化而缩短或者延长 ,细胞内在的端粒长度调控机制控制着端粒长度在一定的范围内变化。本文还分析了在端粒长度研究方面存在的问题
Telomeres are a special structure located at the end of chromosomes and have the function of maintaining chromosome stability. Different cells, different chromosomes of the same cell have different telomere length; telomere length is controlled by genes and is affected by various external factors; telomere length is shortened or prolonged with cell proliferation and differentiation; intracellular The regulation of telomere length controls telomere length within a certain range. The paper also analyzes the problems in telomere length research