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贝类不等卵裂
释义
贝类不等卵裂
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贝类不等卵裂
释
shellfish unequal cleavage
贝类不等卵裂
卵裂产生的子细胞(卵裂球[注])完全分开,但大小不等,并且每一个上层的分裂球总是位于两个下层分裂球之间,呈现螺旋式排列的现象。又称螺旋型全裂[注]。
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