Heterochromatin is dynamically regulated during the cell cycle and in response to developmental signals.
在细胞周期中，异染色质会被进行动态的调节，以响应发育信号。
2
OBJECTIVE:To explore the effect of low level lead exposure during pregnancy on the auditory developmental level of infants through examination of auditory brainstem response.
目的：通过听脑干反应检查观察孕期低水平铅暴露对婴儿期听力发育的影响。
3
Alternative splicing is often regulated in tissue-and developmental stage-specific manner, or in response to extracellular stimuli.