他们还可能利用重组合DNA来研究细胞分化和发育，包括像癌症这样的组胞变态。
They could also use recombinant DNA to study cell differentiation and development, including such cellular abnormalities as cancer.
结果显示，有一个突变株不能分化异形胞；三个突变株可以形成异形胞，但在缺氮的条件下仍不能维持生长；
The result showed that one mutant was unable to differentiate heterocyst, three formed heterocysts but still could not maintain normal growth, four growed slowly with heterocyst differentiation.
水螅样的胞块经活检证明是中分化腺癌。
Note the polypoid mass which on biopsy proved to be a moderately differentiated adenocarcinoma.
目的研究在体外5-氮胞苷诱导骨髓间质干细胞定向心肌向分化的条件。
Objective To investigate the effect of 5-azacytidine on cardiomyogenic differentiation of bone marrow mesenchymal stem cells (BMSCs).
目的：观察脐血间充质干细胞经5-氮杂胞苷诱导在体外定向分化为心肌样细胞的形态学及分子生物学特征。
AIM: To study morphological and molecular biological feature of differentiation of umbilical cord blood stem cells in vitro after induced by 5-azacytidine into cardiomyocytes.
水生环境下的藓类植物，细胞胞壁薄，表皮细胞排列不紧密，茎皮部无内外皮部分化。
Compared with xeric and shady mosses, the aquatic mosses had thin cell walls, the loosely arrayed epidermis cells, and no differentiation of cortex.
电镜可见胞浆有张力原纤维，角蛋白免疫组织化学阳性证实鳞状上皮有分化特征。
The tonofilament expression in cell cytoplasm by electron-microscopy and positive reaction of cytokeratin by immunochemistry showed differentiative character of squamous epithelium.
神经分化形态表现为瘤细胞胞质和胞质突起内可见散在或簇状分布的致密核心颗粒，并形成突触样结构。
The ultrastructural features of neural differentiation included scattered or cluster distribution of dense core granules in cytoplasm and cytoplasmic processes;
成脂诱导分化2周后，细胞内可见有大量脂滴，油红“0”染色可见胞浆内有大量红染颗粒。
Oil Red o staining of the ASCs after 2 weeks of culture demonstrated numerous intracellular lipid droplets.
成脂诱导分化2周后，细胞内可见有大量脂滴，油红“0”染色可见胞浆内有大量红染颗粒。
Oil Red o staining of the ASCs after 2 weeks of culture demonstrated numerous intracellular lipid droplets.
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