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HIGH SCHOOL

Biology

Science Experiments

Basic Biology

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Biology II: Mouse, Zebrafish, and Chick

Ex Ovo Chick Embryo Culture Methods

Description

Chick embryo ex ovo culture keeps the embryo outside the eggshell for easier study and handling. The chicken embryo is a useful model for developmental biology because it develops outside the female and is easy to access for experiments. Scientists often study embryos inside the shell, or in ovo, but access can become harder...

Transcript

鸡胚的发育在母体外进行,因此它是一个研究发育途径的通用模式生物。然而蛋壳阻碍了某些实验中对胚胎的操作。值得庆幸的是,利用一些常见的实验室材料,鸡胚可以在壳外进行孵育,这也被称为"去壳培养"。本短片中,您将学习到去壳培养的基本原理,两种不同培养方式的逐步操作过程,和该技术在发育学研究中的一些应用。

在讲如何去壳孵育小鸡前,让我们先看看这一技术的一些原理。鸡胚在蛋壳内的发育与包裹蛋黄的蛋黄膜紧密相关。蛋内其他的空间被蛋清,也就是蛋白充满,它起着保护胚胎并提供蛋白质供给的作用。蛋壳外的培养可以是全蛋黄培养,将鸡蛋内所有组分放到一个小的容器内。也可以是将胚胎组织切下来用去壳嫁接培养。这两种技术与...

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