虽然对于珠蛋白基因表达调控及开关的研究已取得许多进展，但至今对于调节这些开关的决定性调节因子仍不明确。
Although advance has been made in the study on control of globin gene expression and switching, key factors of globin gene switching is still unknown till now.
珠蛋白基因的程序性表达是组织发育时期专一性的。
The programmed expression of globin genes is tissue and developmental stage specific.
果与电镜和流式细胞光度计的实验结果一致，表明珠蛋白基因产物血红蛋白住杂交细胞中，能够表达并成为融合细胞的标志。
Results indicated that the resultant cybrid cells are characterized by the appearance of hemoglobin and its expression might be served as a marker for the cybrids.
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