作为其中的一个工作，真核生物基因启动子区域的识别是一个难点。
As a part of which, the recognition of promoter field in eukaryote's gene is very hard.
结果发现，作为电子致密依的CA前体和原顶体颗粒出现在副核和细胞核之间区域。
It is found that the CA is an electron dense body and the proacrosomal granule appear in the region between the nucleus and the nebenkern.
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