精核;精子核
A sperm is mostly a nucleus surrounded by little other cellular material.
精子的主要是一个细胞核和围绕该细胞核的少量其他细胞物质构成.
Research on Parthenogenetic Development of Mouse Recombinant Oocyte Which Was Removed Sperm Nucleus after Engraft PB1
小鼠第一极体(PB1)重组卵母细胞去精核孤雌发育研究
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