一般情况下,每一种生物的染色体数目都是稳定的。但是在某些特定的条件下,生物的染色体数目会发生变异。染色体数目的变异往往引起相关性状的改变。
目的:研究体外培养发育的人胚卵裂球18、X及Y染色体数目变异和培养方式对颗粒细胞分泌功能的影响。
Objective:To study the numerical deviation of chromosome of 18, X and Y in blastomeres developed in vitro and effects of culture system on granulosa cells secretory function.
Cleveland教授实验室的研究者建立染色体数目有明显变异的小鼠模型,并分析该非整倍体小鼠模型是否更容易罹患肿瘤。
To find out, researchers in the Cleveland lab created and analyzed mouse models with cells having a highly variable number of chromosomes to discover if such aneuploidy made the mice more tumor-prone.
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