摘要
采用体外跌卵的方法,对花背蟾蜍卵子的体外成熟过程进行了形态学及细胞学检查,并对利用体外跌卵作为细胞核移植受体进行了初步的尝试.结果表明,体外跌卵与活体卵子的离巢及成熟过程基本一致;采用体外跌卵作为移核受体,得到了发育至游泳期的蝌蚪,但发育的百分比低于对照组.
When degrees of freedom M×N reaches to 10 5 quantity level,TM digital image is normal distribution based on an example of TM 5 wave band digital image of Zunyi city in Guizhou.Though it is better according to normal distribution when average grey scale is about 1 3 times standard error of estimate σ ∧ , it apparently differs from normal distribution.So TM digital image is biased normal distribution when | f-|≥1.3 σ ∧.
出处
《西北师范大学学报(自然科学版)》
CAS
1997年第4期55-58,共4页
Journal of Northwest Normal University(Natural Science)
关键词
体外跌卵
细胞核移植
受体
花背蟾蜍
TM digital imagebiased normal distributionstatistical histogramnormal propability paper