多精受精 meaning in English
[生物学] (多精入卵) polyspermy; polyspermia
◇多精受精卵 polyspermic egg
Examples
- About 2s after fertilization in 17 , sperms arrive at micropylar tube ; 3s , sperm penetrates into ovum where cytoplasm is sunken ; 5s , the spermaster come into being ; 20s , fertilization stopper appears ; 60s , sperms in micropylar apparatus begin to disaggregate
精子在受精2s到达精孔管, 3s进入卵子, 5s形成精子星光, 20s形成受精塞, 60s后精孔器内精子开始溶解。有多精入卵现象,极少数卵子多精受精。