细胞发生

The total incidence of intracranial leukemic nfiltration in 50 leukemic autoptic cases was 90%.

50例白血病尸检患者白血病细胞颅内浸润总发生率90%。

Micrococcal nuclease treatment indicates that the remodeling of the demembranated sperm chromatin has occurred and the structure of nucleosome is formed during nuclear reconstitution.

，利用小球菌核糖核酸酶处理果表明，去膜精子在此非细胞体系中发生了构改建并且在重建过程中形成了核小体构。

The factors which influenced somatic embryogenesis and plantlet regeneration in Picea meyeri Rehd. et Wils. were studied in order to establish a high frequency embryogenetic system.

摘要建立白杄体细胞胚胎发生及其植株再生高频率实验系统，对聚乙醇及干化处理影响进行了系统研究。

Alternatively, a new version of a gene can also be created through reverse transcription: during gene expression, the mRNA is copied back into a sequence of DNA that is inserted into the genome.

其，基因复本也可能透过反转录作用，将基因表现出来mRNA反转录成DNA序列，再插回基因组内，这种现象称反转录移位（retrotransposition），发生在细胞内称长散布核因子（LINE）转位子活动。