the end-piece of the sperm consists of the axoneme and its surrounding cytoplasm, and the axoneme has a typical "9 + 2" structure.
精子末段由丝及
丝的质膜组成,
丝为典型的"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.
精子末段由丝及
丝的质膜组成,
丝为典型的"9+2"结
。
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