多精入卵
duō jīnɡ rù luǎn
- 名polyspermy
多精入卵-
有多精入卵现象，极少数卵子多精受精。
Now and then , there exists the phenomenon that a few sperms penetrate into egg , while polyspermy is few .
-
受精过程无论体内或体外，都容易发生多精入卵，体外受精则更甚。
Polyspermy occurred more frequently during in vitro fertilization than in vivo in pig , although it has been reported commonly in both cases .