人类基因组中存在大量具有“跳跃”能力的逆转座子序列。在胚胎发育早期、免疫及神经系统等特定阶段和环境下，它们会被激活并发挥重要生理功能。在病毒感染、肿瘤发生及机体衰老等状态下，它们通常会持续异常活化，使基因调控紊乱和基因组不稳定。

CHONGQING (CQNEWS) -- On February 13, at the Long’anlu Station of Chongqing Rail Transit Line 15, Phase 1 Project, workers from China Railway Group were intensifying their efforts to advance the ...