the end-piece of the sperm consists of the axoneme and its surrounding cytoplasm, and the axoneme has a typical "9 + 2" structure.
精子末段由轴绕轴的质膜组成,轴为典型的"9+2"结。
the end-piece of the sperm consists of the axoneme and its surrounding cytoplasm, and the axoneme has a typical "9 + 2" structure.
精子末段由轴绕轴的质膜组成,轴为典型的"9+2"结。
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