未分化人胚胎干细胞表达VEGFR - 2，并在分化时持续表达。
Undifferentiated human embryonic stem cells express VEGFR-2, and VEGFR-2 expression persists on differentiation.
例如，糖皮质激素受体基因在大脑特定区域的持续表达提高了调节应激反应的能力。
For example, increased expression of the glucocorticoid receptor gene in particular brain regions improves the ability to regulate a stress response.
看家基因是那些在不同的组织细胞里持续表达以维持细胞基本功能的基因。
Housekeeping genes are constitutively expressed genes across different tissue types to maintain the essential cellular functions.
神经细胞至少能存活8周，在此期间GFP能持续表达，说明慢病毒能有效而稳定感染神经细胞。
Neurons could survive in the culture for at least 8 weeks, during which the GFP was persistently expressed, indicating the lentivirus could efficiently and stably infect the neurons.
RTPCR表明，银鲫M3CK基因在成熟卵母细胞和胚胎发育早期可检测到少量的转录产物，在胚胎发育期间从肌肉效应期开始转录，并一直持续表达。
RT PCR analysis showed that the maternal mRNAs of the gibel carp M3 CK gene was detected in mature eggs and early stage embryos.
RTPCR表明，银鲫M3CK基因在成熟卵母细胞和胚胎发育早期可检测到少量的转录产物，在胚胎发育期间从肌肉效应期开始转录，并一直持续表达。
RT PCR analysis showed that the maternal mRNAs of the gibel carp M3 CK gene was detected in mature eggs and early stage embryos.
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